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All questions of Animal Kingdom for BPSC (Bihar) Exam
With reference to the human body, consider the following statements:
1. The production of somatropin goes up when a person exercises.
2. Men’s testes produce progesterone.
3. Women’s adrenal glands secret testosterone.
4. Stress causes the adrenal to release very less amount of cortisol than usual.Q. Which of these statements are correct?- a)1, 2, 3 and 4
- b)1, 2 and 3
- c)2, 3 and 4
- d)1 and 4
Correct answer is option 'D'. Can you explain this answer?
With reference to the human body, consider the following statements:
1. The production of somatropin goes up when a person exercises.
2. Men’s testes produce progesterone.
3. Women’s adrenal glands secret testosterone.
4. Stress causes the adrenal to release very less amount of cortisol than usual.
1. The production of somatropin goes up when a person exercises.
2. Men’s testes produce progesterone.
3. Women’s adrenal glands secret testosterone.
4. Stress causes the adrenal to release very less amount of cortisol than usual.
Q. Which of these statements are correct?
a)
1, 2, 3 and 4
b)
1, 2 and 3
c)
2, 3 and 4
d)
1 and 4
|
Surbhi Basu answered |
During exercise, the level of somatotropin goes up. Testes secrete testosterone and females’ adrenal glands secrete progesterone. Stress causes the adrenal glands to release very less amount of cortisol (a steroid hormone) than usual.
Consider the following statements:
1. Warm-blooded animals can remain active in cold environment in which cold-blooded animals can hardly move.
2. Cold-blooded animals require much less energy to survive than warm-blooded animals.
Q. Which of the statements given above is/are correct?
- a)1 only
- b)Both 1 and 2
- c)2 only
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements:
1. Warm-blooded animals can remain active in cold environment in which cold-blooded animals can hardly move.
2. Cold-blooded animals require much less energy to survive than warm-blooded animals.
1. Warm-blooded animals can remain active in cold environment in which cold-blooded animals can hardly move.
2. Cold-blooded animals require much less energy to survive than warm-blooded animals.
Q. Which of the statements given above is/are correct?
a)
1 only
b)
Both 1 and 2
c)
2 only
d)
Neither 1 nor 2
|
|
Sagarika Menon answered |
The correct answer is:
- Both 1 and 2
Explanation:
- This statement is correct. Warm-blooded animals have the ability to regulate their internal body temperature, allowing them to remain active in cold environments where cold-blooded animals may struggle due to their reliance on external sources of heat for temperature regulation.
- This statement is also correct. Cold-blooded animals typically have lower metabolic rates and require much less energy to survive compared to warm-blooded animals, which need to maintain a constant internal body temperature through metabolic processes that require more energy.
Consider the following statements:
1. Human beings have 23 pairs of chromosomes.
2. Sex chromosome in human male is named XX.
3. Chromosomes are best seen in metaphase.Q. Which of the statements given above are false about chromosomes?- a)1 and 2
- b)2 only
- c)1, 2 and 3
- d)None of these
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements:
1. Human beings have 23 pairs of chromosomes.
2. Sex chromosome in human male is named XX.
3. Chromosomes are best seen in metaphase.
1. Human beings have 23 pairs of chromosomes.
2. Sex chromosome in human male is named XX.
3. Chromosomes are best seen in metaphase.
Q. Which of the statements given above are false about chromosomes?
a)
1 and 2
b)
2 only
c)
1, 2 and 3
d)
None of these
|
|
Nitya Gupta answered |
Humans are diploid organisms by having two members or homologous chromosomes in a pair. Total 23 pairs of chromosomes exist in each somatic cell of the body. Total 46 chromosomes occur. One particular pair individually in male and female determines their respective sex. This one pair is XX in females and XY in males. All the 46 chromosomes in pairs can be seen under microscope at metaphase stage in the cells which are undergoing mitosis.
Consider the following statements:
Assertion (A): ‘DNA fingerprinting’ has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.
Reason (R): Trace evidences, such as hairs, saliva and dried semen, are adequate for DNA analysis.- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements:
Assertion (A): ‘DNA fingerprinting’ has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.
Reason (R): Trace evidences, such as hairs, saliva and dried semen, are adequate for DNA analysis.
Assertion (A): ‘DNA fingerprinting’ has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.
Reason (R): Trace evidences, such as hairs, saliva and dried semen, are adequate for DNA analysis.
a)
Both A and R are true and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is true, but R is false.
d)
A is false, but R is true.
|
|
Ipsita Basak answered |
Regarding to the DNA fingerprinting, both the given statements are correct.
Consider the following statements:
Assertion (A): Drinking of whisky increases the frequency of urination.
Reason (R): Alcohol intake speeds up the secretion of vasopressin in the body.- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements:
Assertion (A): Drinking of whisky increases the frequency of urination.
Reason (R): Alcohol intake speeds up the secretion of vasopressin in the body.
Assertion (A): Drinking of whisky increases the frequency of urination.
Reason (R): Alcohol intake speeds up the secretion of vasopressin in the body.
a)
Both A and R are true and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is true, but R is false.
d)
A is false, but R is true.
|
|
Shreya Mishra answered |
Alcohol acts as a diuretic. It actually promotes urine production by inhibiting the release of antidiuretic hormone, or vasopressin from the pituitary gland. In turn, reduced levels of antidiuretic hormone prevent the kidneys from reabsorbing water and thereby increase urine production.
Consider the following statements:
Assertion (A): Scientists can cut apart and paste together DNA molecules at will, regardless of the source of the molecules.
Reason (R): DNA fragments can be manipulated from restriction endonucleases and DNA ligases.- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements:
Assertion (A): Scientists can cut apart and paste together DNA molecules at will, regardless of the source of the molecules.
Reason (R): DNA fragments can be manipulated from restriction endonucleases and DNA ligases.
Assertion (A): Scientists can cut apart and paste together DNA molecules at will, regardless of the source of the molecules.
Reason (R): DNA fragments can be manipulated from restriction endonucleases and DNA ligases.
a)
Both A and R are true and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is true, but R is false.
d)
A is false, but R is true.
|
Rishabh Sen answered |
In genetic engineering, a DNA segment from any foreign source can be inserted into any other genetic material. The enzymes, called restriction endonucleases, act like scissors that cut apart a particular or specific part of the DNA. This cut out DNA piece can be inserted into other genetic material which has been cut to make space for containing the foreign DNA. The DNA once inserted can be ligated by enzymes known as ligases.
Consider the following statements about Vechur cattle breed
1. Vechur is the world’s largest cow.
2. It is indigenous breed found in Kerala.
3. Its milk protein has medicinal value.
4. Commonly used in farming as draught animal.Q. Which of the statements given above are correct?- a)1, 2, 3 and 4
- b)1, 2 and 3
- c)2, 3 and 4
- d)3 and 4
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements about Vechur cattle breed
1. Vechur is the world’s largest cow.
2. It is indigenous breed found in Kerala.
3. Its milk protein has medicinal value.
4. Commonly used in farming as draught animal.
1. Vechur is the world’s largest cow.
2. It is indigenous breed found in Kerala.
3. Its milk protein has medicinal value.
4. Commonly used in farming as draught animal.
Q. Which of the statements given above are correct?
a)
1, 2, 3 and 4
b)
1, 2 and 3
c)
2, 3 and 4
d)
3 and 4
|
|
Keerthana Kulkarni answered |
The Vechur cattle is a rare breed of Bos indicus, named after the village Vechoor in Kottayam district of the state of Kerala in India. Its average length is 124 cm and height is 87 cm, according to the Guineas Book of Records, it’s the smallest cattle breed in the world. Its milk is considered to have medicinal properties. Unlike other cattle, they can resist drought by being hardy towards it.
Consider the following statements:
Assertion (A): Human diet should compulsorily contain glycine, serine and tyrosin.
Reason (R): Essential amino acids can’t be synthesized in the human body.- a)A and R are true and R is the correct explanation of A.
- b)A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements:
Assertion (A): Human diet should compulsorily contain glycine, serine and tyrosin.
Reason (R): Essential amino acids can’t be synthesized in the human body.
Assertion (A): Human diet should compulsorily contain glycine, serine and tyrosin.
Reason (R): Essential amino acids can’t be synthesized in the human body.
a)
A and R are true and R is the correct explanation of A.
b)
A and R are true, but R is not the correct explanation of A.
c)
A is true, but R is false.
d)
A is false, but R is true.
|
|
Avik Chawla answered |
Essential amino acids or indispensable amino acids are those amino acids which cannot be synthesized de novo by any particular organism. In humans also, some amino acids are essential and must be supplied in the diet. The amino acids regarded as essential for humans are phenylalanine, valine, threonine, tryptophan, methionine, leucine, isoleucine, lysine, and histidine.
Consider the following statements:
1. Dengue is a protozoan disease transmitted by mosquitos.
2. Retro-orbital pain is not a symptom of dengue.
3. Skin rash and bleeding from nose and gums are some of the symptoms of the dengue.
Q. Which of the statements given above is/are correct?- a)1 and 2 only
- b)2 only
- c)3 only
- d)1 and 3 only
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements:
1. Dengue is a protozoan disease transmitted by mosquitos.
2. Retro-orbital pain is not a symptom of dengue.
3. Skin rash and bleeding from nose and gums are some of the symptoms of the dengue.
Q. Which of the statements given above is/are correct?
1. Dengue is a protozoan disease transmitted by mosquitos.
2. Retro-orbital pain is not a symptom of dengue.
3. Skin rash and bleeding from nose and gums are some of the symptoms of the dengue.
Q. Which of the statements given above is/are correct?
a)
1 and 2 only
b)
2 only
c)
3 only
d)
1 and 3 only
|
|
Amrita Bose answered |
Dengue is a viral disease transmitted through mosquito. Fever, headache, pain in joints, back muscles and eyeballs, skin rash for a few days, bleeding from nose and gums are some of the symptoms of the dengue fever.
Which of the following professionals are more likely to run the risk of a permanent change in their cell’s DNA?
1. Researchers from carbon-14 isotope
2. X-ray technician
3. Coal miner
4. Dyer and painter
Q. Select the correct answer from the codes given below:- a)2 only
- b)1, 2 and 4
- c)1, 2 and 3
- d)1, 3 and 4
Correct answer is option 'B'. Can you explain this answer?
Which of the following professionals are more likely to run the risk of a permanent change in their cell’s DNA?
1. Researchers from carbon-14 isotope
2. X-ray technician
3. Coal miner
4. Dyer and painter
Q. Select the correct answer from the codes given below:
1. Researchers from carbon-14 isotope
2. X-ray technician
3. Coal miner
4. Dyer and painter
Q. Select the correct answer from the codes given below:
a)
2 only
b)
1, 2 and 4
c)
1, 2 and 3
d)
1, 3 and 4
|
Rithika Yadav answered |
X-Ray technique, C14 and Dyer technique is a very important technique for a permanent change in DNA. But in coal miner, C14 amount is very very less. So, there is no risk of change in DNA.
Consider the following statements and choose the correct code.
Assertion (A): Osteoporosis is a reduction in bone mass causing weakness of skeletal bones.
Reason (R): It is caused by excessive resorption of calcium and phosphorus from the bone.- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true, but R is not the correct explanation of A
- c)A is true, but R is false.
- d)Both A and R are false
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements and choose the correct code.
Assertion (A): Osteoporosis is a reduction in bone mass causing weakness of skeletal bones.
Reason (R): It is caused by excessive resorption of calcium and phosphorus from the bone.
Assertion (A): Osteoporosis is a reduction in bone mass causing weakness of skeletal bones.
Reason (R): It is caused by excessive resorption of calcium and phosphorus from the bone.
a)
Both A and R are true and R is the correct explanation of A
b)
Both A and R are true, but R is not the correct explanation of A
c)
A is true, but R is false.
d)
Both A and R are false
|
|
Ipsita Reddy answered |
Osteoporosis is a disease of bones and cartilage in which there is a reduction in bone tissue mass causing weakness of skeletal bones and fragility. It is caused by excessive resorption of calcium and phosphorous from the bones.
Consider the following statements about gene1. Word ‘Gene’ was given by Johanssen.2. Genes are situated on chromosomes.3. Genes located at different locus and having different expression are multiple alleles. Q. Which of the statements given above are true?a)1, 2 and 3b)2 and 3c)1 and 3d)1 and 2Correct answer is option 'A'. Can you explain this answer?
|
|
Saranya Basak answered |
All the statements are correct. The term gene was coined by Danish biologist Wilhelm Johannsen in 1909. Genes are the discrete DNA segments sitting in the chromosomes which express to give rise to a particular protein. Alleles are the alternative forms of same gene. In diploid organisms, there are two alleles on the two homologous chromosomes. If there exists multiple number of alleles of same gene, it means all the alleles are multiple or simply multiple alleles.
Consider the following statements and choose the correct ones.
1. Once the HIV gains a foothold, it can never be eradicated from the body.
2. Many HIV patients, however, can manage the infection with a cocktail of drugs.
3. It is very mutable and infects the respiratory system itself.- a)1 and 2 only
- b)2 and 3 only
- c)None
- d)All are correct
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements and choose the correct ones.
1. Once the HIV gains a foothold, it can never be eradicated from the body.
2. Many HIV patients, however, can manage the infection with a cocktail of drugs.
3. It is very mutable and infects the respiratory system itself.
1. Once the HIV gains a foothold, it can never be eradicated from the body.
2. Many HIV patients, however, can manage the infection with a cocktail of drugs.
3. It is very mutable and infects the respiratory system itself.
a)
1 and 2 only
b)
2 and 3 only
c)
None
d)
All are correct
|
|
Hiral Singh answered |
All the statements are correct. The HIV is highly mutable retrovirus and if remain dormant in the body for long time, it becomes all the more difficult to detect it and remove it from the body once detected. The most severe thing it does to the body is that, it directly attacks the immune system killing many T-cells. And it takes around 10 years to develop AIDS. However, a patient can lead a normal life via taking antiretroviral therapies (ARTs) which can decrease the virus load to undetectable level.
Consider the following statements:
1. Chlorella is present in sewage.
2. Chlorella produces food rich in vitamins, proteins, etc.
3. Chlorella is used in prolonged space flight for O2.
4. Chlorella yields an antibiotic, penicillin.
Which of the statements given above is/are correct?- a)1 and 2 only
- b)2 and 3 only
- c)1, 2 and 3 only
- d)1, 2, 3 and 4
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements:
1. Chlorella is present in sewage.
2. Chlorella produces food rich in vitamins, proteins, etc.
3. Chlorella is used in prolonged space flight for O2.
4. Chlorella yields an antibiotic, penicillin.
Which of the statements given above is/are correct?
1. Chlorella is present in sewage.
2. Chlorella produces food rich in vitamins, proteins, etc.
3. Chlorella is used in prolonged space flight for O2.
4. Chlorella yields an antibiotic, penicillin.
Which of the statements given above is/are correct?
a)
1 and 2 only
b)
2 and 3 only
c)
1, 2 and 3 only
d)
1, 2, 3 and 4
|
|
Raksha Deshpande answered |
In sewage treatment tanks, different aerobic bacteria are used to degrade organic wastes. 'Chlorella' is used as a source of providing oxygen to the bacteria. Chlorella is an attractive food source as it is high in protein and other essential nutrients. Dried Chlorella contains around 45% protein, 20% fat, 20% carbohydrate and pretty good amount of vitamins. Chlorella is a potential plant to be used in space flight shuttles for continuous oxygen supply. Chlorellin is an antibiotic obtained from chlorella.
Match the hormones in List-I with items in List-II and select the correct answer from the codes given below:
List-I List-II
A. Adrenaline 1. Anger, fear, danger
B. Oestrogen 2. Attracting partners of smell through sense
C. Insulin 3. Females
D. Pheromones 4. Glucose- a)A: 3, B: 1, C: 4, D: 2
- b)A: 1, B: 3, C: 2, D: 4
- c)A: 1, B: 3, C: 4, D: 2
- d)A: 3, B: 1, C: 2, D: 4
Correct answer is option 'C'. Can you explain this answer?
Match the hormones in List-I with items in List-II and select the correct answer from the codes given below:
List-I List-II
A. Adrenaline 1. Anger, fear, danger
B. Oestrogen 2. Attracting partners of smell through sense
C. Insulin 3. Females
D. Pheromones 4. Glucose
List-I List-II
A. Adrenaline 1. Anger, fear, danger
B. Oestrogen 2. Attracting partners of smell through sense
C. Insulin 3. Females
D. Pheromones 4. Glucose
a)
A: 3, B: 1, C: 4, D: 2
b)
A: 1, B: 3, C: 2, D: 4
c)
A: 1, B: 3, C: 4, D: 2
d)
A: 3, B: 1, C: 2, D: 4
|
|
Akshat Jain answered |
Adrenalines are secreted in the situations of exercise, fear or any kind of dangerous situation. Oestrogens are steroid hormones or female primary sex hormones. Insulin is responsible for the metabolism of sugar in the body. Pheromones are the compounds which are secreted generally from insect; go out to affect the other insects. Some of the pheromones include alarm pheromones, food trail pheromones, and sex pheromones.
Match List-I with List-II and select the correct answer from the codes given below:
List-I List-II
(Bone) (Name)
A. Breast bone 1. Clavicle
B. Collar bone 2. Patella
C. Knee cap 3. Scapula
D. Shoulder blade 4. Sternum- a)A: 4, B: 1, C: 3, D: 2
- b)A:1, B: 4, C: 3, D: 2
- c)A: 1, B: 4, C: 2, D: 3
- d)A:4, B: 1, C: 2, D: 3
Correct answer is option 'D'. Can you explain this answer?
Match List-I with List-II and select the correct answer from the codes given below:
List-I List-II
(Bone) (Name)
A. Breast bone 1. Clavicle
B. Collar bone 2. Patella
C. Knee cap 3. Scapula
D. Shoulder blade 4. Sternum
List-I List-II
(Bone) (Name)
A. Breast bone 1. Clavicle
B. Collar bone 2. Patella
C. Knee cap 3. Scapula
D. Shoulder blade 4. Sternum
a)
A: 4, B: 1, C: 3, D: 2
b)
A:1, B: 4, C: 3, D: 2
c)
A: 1, B: 4, C: 2, D: 3
d)
A:4, B: 1, C: 2, D: 3
|
|
Surbhi Basu answered |
Sternum is the breast bone. Clavicle is the collar bone. Patella is the knee cap. Scapula is the shoulder blade.
Consider the following statements and choose the correct code.
Assertion (A): A true nucleus is absent in E. coli and other prokaryotes.
Reason (R): An undifferentiated, unorganised fibrillar chromosome existsinside the prokaryotic cells.- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is false, but R is true.
- d)Both A and R are false.
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements and choose the correct code.
Assertion (A): A true nucleus is absent in E. coli and other prokaryotes.
Reason (R): An undifferentiated, unorganised fibrillar chromosome existsinside the prokaryotic cells.
Assertion (A): A true nucleus is absent in E. coli and other prokaryotes.
Reason (R): An undifferentiated, unorganised fibrillar chromosome existsinside the prokaryotic cells.
a)
Both A and R are true and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is false, but R is true.
d)
Both A and R are false.
|
|
Srishti Nambiar answered |
In the prokaryotes, all the genetic materials lie inside the cell, no clear or separate nuclear wall is recognized in these cells. In fact no membranebound organelles are found in the prokaryotes. While on the other hand, one of the characteristic features of the eukaryotic cells is the presence of membrane bound organelles. Clear and distinguished nuclear membrane bounds the genetic material inside.
Which of the following sectors is not included in the NITI Aayog’s focus regarding “National AI Strategy”:1. Agriculture 2. MSME 3. Education 4. Infrastructure 5. Oil and Natural Gas Select the correct code: - a)1, 2 and 4 only
- b)2 and 5 only
- c)3 and 5 only
- d) 1 and 3 only
Correct answer is option 'B'. Can you explain this answer?
Which of the following sectors is not included in the NITI Aayog’s focus regarding “National AI Strategy”:
1. Agriculture
2. MSME
3. Education
4. Infrastructure
5. Oil and Natural Gas
Select the correct code:
a)
1, 2 and 4 only
b)
2 and 5 only
c)
3 and 5 only
d)
1 and 3 only
|
Saranya Roy answered |
However, as far as I know, the NITI Aayog covers almost all sectors of the Indian economy, including agriculture, education, health, infrastructure, energy, and more. It is possible that some sectors may have been added or removed over time, so it's best to refer to the official website or latest publications for accurate information.
Consider the following statements:
1. Meningococcal meningitis is transmitted from person to person by mosquito bites.
2. Vomiting and neck pain are two of the symptoms of meningococcal meningitis. Which of the statements given above is/are correct?- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements:
1. Meningococcal meningitis is transmitted from person to person by mosquito bites.
2. Vomiting and neck pain are two of the symptoms of meningococcal meningitis. Which of the statements given above is/are correct?
1. Meningococcal meningitis is transmitted from person to person by mosquito bites.
2. Vomiting and neck pain are two of the symptoms of meningococcal meningitis. Which of the statements given above is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Avantika Mukherjee answered |
Meningococcal meningitis is transmitted from person to person through air via droplets of respiratory secretions and direct contact with an infected person like oral contact with shared items.
Which nutrient is primarily responsible for the body's growth and maintenance?- a)Vitamins
- b)Minerals
- c)Proteins
- d)Carbohydrates
Correct answer is option 'C'. Can you explain this answer?
a)
Vitamins
b)
Minerals
c)
Proteins
d)
Carbohydrates
|
Gauri Mukherjee answered |
Proteins are primarily responsible for the body's growth and maintenance.
Proteins are macronutrients that play a crucial role in the growth and development of the body. They are made up of amino acids, which are the building blocks of proteins. There are 20 different amino acids, and they can be combined in various ways to form different proteins.
Proteins are involved in several important functions in the body, including:
1. Growth and repair: Proteins are essential for the growth and repair of tissues. They are needed for the synthesis of new cells, tissues, and organs, as well as for the repair of damaged tissues. During periods of growth, such as childhood and adolescence, protein needs are particularly high.
2. Enzymes: Many enzymes in the body are proteins. Enzymes are biological catalysts that speed up chemical reactions in the body. They play a crucial role in various metabolic processes, such as digestion, energy production, and detoxification.
3. Hormones: Certain hormones, such as insulin and growth hormone, are proteins. Hormones are chemical messengers that regulate various processes in the body, including growth, metabolism, and reproduction.
4. Transport and storage: Proteins are involved in the transport and storage of molecules in the body. For example, hemoglobin, a protein found in red blood cells, carries oxygen from the lungs to the tissues. Proteins also play a role in the transport of nutrients, such as vitamins and minerals, across cell membranes.
5. Immune function: Proteins are an essential component of the immune system. Antibodies, which are proteins, help to recognize and neutralize foreign substances, such as bacteria and viruses, in the body.
6. Energy source: Although carbohydrates and fats are the primary sources of energy for the body, proteins can also be used as an energy source when carbohydrates and fats are not available in sufficient amounts. This typically occurs during prolonged fasting or intense exercise.
In conclusion, proteins are the primary nutrient responsible for the body's growth and maintenance. They are involved in various functions, including growth and repair, enzyme activity, hormone production, transport and storage, immune function, and energy production. It is important to consume an adequate amount of protein through a balanced diet to support overall health and well-being.
Proteins are macronutrients that play a crucial role in the growth and development of the body. They are made up of amino acids, which are the building blocks of proteins. There are 20 different amino acids, and they can be combined in various ways to form different proteins.
Proteins are involved in several important functions in the body, including:
1. Growth and repair: Proteins are essential for the growth and repair of tissues. They are needed for the synthesis of new cells, tissues, and organs, as well as for the repair of damaged tissues. During periods of growth, such as childhood and adolescence, protein needs are particularly high.
2. Enzymes: Many enzymes in the body are proteins. Enzymes are biological catalysts that speed up chemical reactions in the body. They play a crucial role in various metabolic processes, such as digestion, energy production, and detoxification.
3. Hormones: Certain hormones, such as insulin and growth hormone, are proteins. Hormones are chemical messengers that regulate various processes in the body, including growth, metabolism, and reproduction.
4. Transport and storage: Proteins are involved in the transport and storage of molecules in the body. For example, hemoglobin, a protein found in red blood cells, carries oxygen from the lungs to the tissues. Proteins also play a role in the transport of nutrients, such as vitamins and minerals, across cell membranes.
5. Immune function: Proteins are an essential component of the immune system. Antibodies, which are proteins, help to recognize and neutralize foreign substances, such as bacteria and viruses, in the body.
6. Energy source: Although carbohydrates and fats are the primary sources of energy for the body, proteins can also be used as an energy source when carbohydrates and fats are not available in sufficient amounts. This typically occurs during prolonged fasting or intense exercise.
In conclusion, proteins are the primary nutrient responsible for the body's growth and maintenance. They are involved in various functions, including growth and repair, enzyme activity, hormone production, transport and storage, immune function, and energy production. It is important to consume an adequate amount of protein through a balanced diet to support overall health and well-being.
How many types of nucleotides are there in a DNA molecule, and how many types of amino acids are there in a protein?- a)2 types of nucleotides, 4 types of amino acids
- b)4 types of nucleotides, 20 types of amino acids
- c)3 types of nucleotides, 10 types of amino acids
- d)5 types of nucleotides, 22 types of amino acids
Correct answer is option 'B'. Can you explain this answer?
a)
2 types of nucleotides, 4 types of amino acids
b)
4 types of nucleotides, 20 types of amino acids
c)
3 types of nucleotides, 10 types of amino acids
d)
5 types of nucleotides, 22 types of amino acids
|
Future Foundation Institute answered |
There are 4 types of nucleotides in a DNA molecule, and there are at least 20 types of amino acids in a protein.
Consider the following statements:
Assertion(A): In humans, female sex is determined by XX-chromosomes.
Reason(R): Male sex is determined by YY-chromosomes.- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'C'. Can you explain this answer?
Consider the following statements:
Assertion(A): In humans, female sex is determined by XX-chromosomes.
Reason(R): Male sex is determined by YY-chromosomes.
Assertion(A): In humans, female sex is determined by XX-chromosomes.
Reason(R): Male sex is determined by YY-chromosomes.
a)
Both A and R are true and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is true, but R is false.
d)
A is false, but R is true.
|
|
Amrutha Kapoor answered |
Humans are diploid with 23 pairs of chromosomes. Of this, 22 pairs are somatic and the one pair is sex chromosomes. This particular pair exists as XX in human females and XY in males. The presence of two X chromosomes contributes to the female phenotype while presence of only one Y chromosome is responsible for the human to be male. Females produce only X-type haploid gametes and males produce two types (X and Y) of haploid gametes. Fusion of either X or Y of male gamete with the female gamete determines the sex of the offspring.
Consider the following statements
Assertion (A): An enzyme is basically a protein which acts like a catalyst in the metabolic reactions of an organism.
Reason (R): The pancreatic juice is basically composed from three enzymes trypsin, amylase and lipase.- a)A and R are correct and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements
Assertion (A): An enzyme is basically a protein which acts like a catalyst in the metabolic reactions of an organism.
Reason (R): The pancreatic juice is basically composed from three enzymes trypsin, amylase and lipase.
Assertion (A): An enzyme is basically a protein which acts like a catalyst in the metabolic reactions of an organism.
Reason (R): The pancreatic juice is basically composed from three enzymes trypsin, amylase and lipase.
a)
A and R are correct and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is true, but R is false.
d)
A is false, but R is true.
|
|
Ipsita Bajaj answered |
An enzyme is basically a protein which acts like a catalyst in the metabolic reaction and the juice of the pancreas is basically composed from three enzymes trypsin, amylase and lipase.
Consider the following statements and select the correct answer from the codes given below:
Assertion (A): If somebody stops taking green vegetables, he will suffer from night blindness.
Reason (R): He will suffer from vitamin A deficiency.- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements and select the correct answer from the codes given below:
Assertion (A): If somebody stops taking green vegetables, he will suffer from night blindness.
Reason (R): He will suffer from vitamin A deficiency.
Assertion (A): If somebody stops taking green vegetables, he will suffer from night blindness.
Reason (R): He will suffer from vitamin A deficiency.
a)
Both A and R are true and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is true, but R is false.
d)
A is false, but R is true.
|
|
Akanksha Ahuja answered |
Vitamin A has a major role in phototransduction. Its deficiency causes night blindness in humans. Xerophthalmia, keratomalacia can also occur with its deficiency. Green, yellow-orange-red (dark- coloured) fruits and vegetables, eggs, milk; fortified cereals are rich source of vitamin A. Their avoidance over a long period may cause the vit-A deficiency symptoms.
Match List-I (animals) with List-II (class/ phylum) and select the correct answer from the codes given below:
List-I List-IIA. Octopus 1. Pisces
B. Jellyfish 2. Arthropoda
C. Silver fish 3. Mollusca
D. Bombay duck 4. Coelenterata- a)A: 3, B: 4, C: 2, D: 1
- b)A: 3, B: 2, C: 4, D: 1
- c)A: 2, B: 3, C: 1, D:4
- d)A: 2, B: 1, C: 3, D: 4
Correct answer is option 'A'. Can you explain this answer?
Match List-I (animals) with List-II (class/ phylum) and select the correct answer from the codes given below:
List-I List-II
List-I List-II
A. Octopus 1. Pisces
B. Jellyfish 2. Arthropoda
C. Silver fish 3. Mollusca
D. Bombay duck 4. Coelenterata
B. Jellyfish 2. Arthropoda
C. Silver fish 3. Mollusca
D. Bombay duck 4. Coelenterata
a)
A: 3, B: 4, C: 2, D: 1
b)
A: 3, B: 2, C: 4, D: 1
c)
A: 2, B: 3, C: 1, D:4
d)
A: 2, B: 1, C: 3, D: 4
|
|
Sagar Nair answered |
Octopus belongs to Mollusca. Jellyfish belongs to Coelenterata. Silver fish belongs to Arthropoda. Bombay Duck belongs to Pisces.
Which of the following diseases are infectious in milch animals?
1. Hand diseases
2. Anthrax
3. Black quarter
4. Cowpox
Q. Select the correct answer from the codes given below:- a)1, 2 and 3
- b)2, 3 and 4
- c)1 and 4
- d)1, 2, 3 and 4
Correct answer is option 'B'. Can you explain this answer?
Which of the following diseases are infectious in milch animals?
1. Hand diseases
2. Anthrax
3. Black quarter
4. Cowpox
Q. Select the correct answer from the codes given below:
1. Hand diseases
2. Anthrax
3. Black quarter
4. Cowpox
Q. Select the correct answer from the codes given below:
a)
1, 2 and 3
b)
2, 3 and 4
c)
1 and 4
d)
1, 2, 3 and 4
|
|
Hiral Singh answered |
Milch animals are those animals which are source of milk, e.g. cow, goat, buffalo. Foot-andmouth disease, caused by Aphthae epizooticae is an infectious disease that affects cloven-hoofed animals. Anthrax is an acute infectious disease caused by the bacterium Bacillus anthracis. Blackleg, black quarter is an infectious bacterial disease caused by Clostridium chauvoei affecting cattle, sheep and goats. Cowpox is caused by cowpox virus and is infectious.
Consider the following statements:
1. Frogs can breathe by lungs as well as skin.
2. Gills are not present in any stage of lifespan of frogs.Q. Which of the statements given above is/are correct?- a)1 and 2 only
- b)1 only
- c)2 only
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements:
1. Frogs can breathe by lungs as well as skin.
2. Gills are not present in any stage of lifespan of frogs.
1. Frogs can breathe by lungs as well as skin.
2. Gills are not present in any stage of lifespan of frogs.
Q. Which of the statements given above is/are correct?
a)
1 and 2 only
b)
1 only
c)
2 only
d)
Neither 1 nor 2
|
Pragati Banerjee answered |
Explanation:
Frogs are amphibians that have adaptations to live both on land and in water. They have unique respiratory systems that allow them to breathe in both air and water. Let's take a look at the given statements.
1. Frogs can breathe by lungs as well as skin.
This statement is true. Frogs have lungs that allow them to breathe in air, just like humans. However, they also have a unique adaptation that allows them to breathe through their skin. Their skin is thin and moist, which makes it easier for oxygen to diffuse into their bloodstream. This is especially helpful when they are underwater and cannot breathe through their lungs.
2. Gills are not present in any stage of lifespan of frogs.
This statement is also true. While some amphibians, such as salamanders, have gills as larvae, frogs do not. Instead, they undergo a metamorphosis from tadpole to adult frog. During this process, their gills are replaced by lungs, and they develop the ability to breathe through their skin.
In conclusion, both statements are true, but only statement 1 is correct. Frogs can breathe by lungs as well as skin, but they do not have gills at any stage of their lifespan.
Frogs are amphibians that have adaptations to live both on land and in water. They have unique respiratory systems that allow them to breathe in both air and water. Let's take a look at the given statements.
1. Frogs can breathe by lungs as well as skin.
This statement is true. Frogs have lungs that allow them to breathe in air, just like humans. However, they also have a unique adaptation that allows them to breathe through their skin. Their skin is thin and moist, which makes it easier for oxygen to diffuse into their bloodstream. This is especially helpful when they are underwater and cannot breathe through their lungs.
2. Gills are not present in any stage of lifespan of frogs.
This statement is also true. While some amphibians, such as salamanders, have gills as larvae, frogs do not. Instead, they undergo a metamorphosis from tadpole to adult frog. During this process, their gills are replaced by lungs, and they develop the ability to breathe through their skin.
In conclusion, both statements are true, but only statement 1 is correct. Frogs can breathe by lungs as well as skin, but they do not have gills at any stage of their lifespan.
Consider the following statements and choose the correct code.
Assertion (A): Regeneration in animals is one of the strategies to escape predation.
Reason (R): These strategies include the rearrangement of pre-existing tissue.- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is false, but R is true.
- d)Both A and R are false.
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements and choose the correct code.
Assertion (A): Regeneration in animals is one of the strategies to escape predation.
Reason (R): These strategies include the rearrangement of pre-existing tissue.
Assertion (A): Regeneration in animals is one of the strategies to escape predation.
Reason (R): These strategies include the rearrangement of pre-existing tissue.
a)
Both A and R are true and R is the correct explanation of A.
b)
Both A and R are true, but R is not the correct explanation of A.
c)
A is false, but R is true.
d)
Both A and R are false.
|
|
Debanshi Sarkar answered |
Both assertion and reason are false. Regeneration is not itself a strategy but rather the shedding off of any organ is a strategy to avoid predation. The strategy to regenerate the body parts from the preexisting tissue or adult stem cells. This actually involves the de-differentiation of the mature cells to make them a sort of stem cells again which can then differentiate to make the lost part. The later strategy is different than the strategy involved in escaping predation.
Consider the following statements:
1. Food prepared by plant is transported to different parts of plant through phloem.
2. Water and minerals in plant is transported through phloem.
3. The cell wall of phloem cells is rich in lignin.Q. Which of the statements given above is/are correct?- a)1 only
- b)2 and 3
- c)1 and 3
- d)1, 2 and 3
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements:
1. Food prepared by plant is transported to different parts of plant through phloem.
2. Water and minerals in plant is transported through phloem.
3. The cell wall of phloem cells is rich in lignin.
1. Food prepared by plant is transported to different parts of plant through phloem.
2. Water and minerals in plant is transported through phloem.
3. The cell wall of phloem cells is rich in lignin.
Q. Which of the statements given above is/are correct?
a)
1 only
b)
2 and 3
c)
1 and 3
d)
1, 2 and 3
|
|
Tanishq Rane answered |
In the leaves, the photosynthates or sugars are converted into starch and via phloem their transport to all the other parts occur. The xylem cells transport only water and some minerals from the roots upto the shoots. The xylem vessels are dead cells with empty lumen but they are hard to carryout the water transport by depositing secondary wall materials, such as lignin.
Consider the following statements:
1. ELISA test is employed as the first and most basic test for an individual to detect cancer.
2. Almost 50% human being have Rh+ blood while the remaining have Rh– blood.
Q. Which of the statements given above is/are correct?- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'D'. Can you explain this answer?
Consider the following statements:
1. ELISA test is employed as the first and most basic test for an individual to detect cancer.
2. Almost 50% human being have Rh+ blood while the remaining have Rh– blood.
Q. Which of the statements given above is/are correct?
1. ELISA test is employed as the first and most basic test for an individual to detect cancer.
2. Almost 50% human being have Rh+ blood while the remaining have Rh– blood.
Q. Which of the statements given above is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Sanjana Sen answered |
Negative blood.3. Antibodies are proteins produced by the immune system in response to foreign substances in the body.4. PCR (Polymerase Chain Reaction) is a technique used to amplify a specific DNA sequence.5. CT scan uses X-rays to create detailed cross-sectional images of the body.
Which of the statements are true?
1. ELISA test is employed as the first and most basic test for an individual to detect cancer.
3. Antibodies are proteins produced by the immune system in response to foreign substances in the body.
4. PCR (Polymerase Chain Reaction) is a technique used to amplify a specific DNA sequence.
5. CT scan uses X-rays to create detailed cross-sectional images of the body.
Therefore, the true statements are 1, 3, 4, and 5.
Which of the statements are true?
1. ELISA test is employed as the first and most basic test for an individual to detect cancer.
3. Antibodies are proteins produced by the immune system in response to foreign substances in the body.
4. PCR (Polymerase Chain Reaction) is a technique used to amplify a specific DNA sequence.
5. CT scan uses X-rays to create detailed cross-sectional images of the body.
Therefore, the true statements are 1, 3, 4, and 5.
With reference to the work of human kidney, consider the following statements:
1. After the waste is removed in the kidney, the cleaner blood is sent back through renal artery.
2. From Bowman’s capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.Q. Which of the statements is/are correct?- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
With reference to the work of human kidney, consider the following statements:
1. After the waste is removed in the kidney, the cleaner blood is sent back through renal artery.
2. From Bowman’s capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.
1. After the waste is removed in the kidney, the cleaner blood is sent back through renal artery.
2. From Bowman’s capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.
Q. Which of the statements is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Ipsita Basak answered |
After the removal of wastes from the kidneys, the cleaner blood is sent back through the renal veins. From Bowman’s capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.
Match List-I with List-II and select the correct answer from the codes given below:
List-I List-II
A. Ptyalin 1. Converts angiotensinogen in blood into angiotensin
B. Pepsin 2. Digests starch
C. Renin 3. Digests proteins
D. Oxytocin 4. Hydrolyses fats
5. Induces contraction of smooth muscles- a)A: 2, B: 3, C: 1, D: 5
- b)A: 3, B: 4, C: 2, D: 5
- c)A:2, B: 3, C: 5, D: 1
- d)A:3, B: 1, C: 2, D: 4
Correct answer is option 'A'. Can you explain this answer?
Match List-I with List-II and select the correct answer from the codes given below:
List-I List-II
A. Ptyalin 1. Converts angiotensinogen in blood into angiotensin
B. Pepsin 2. Digests starch
C. Renin 3. Digests proteins
D. Oxytocin 4. Hydrolyses fats
5. Induces contraction of smooth muscles
List-I List-II
A. Ptyalin 1. Converts angiotensinogen in blood into angiotensin
B. Pepsin 2. Digests starch
C. Renin 3. Digests proteins
D. Oxytocin 4. Hydrolyses fats
5. Induces contraction of smooth muscles
a)
A: 2, B: 3, C: 1, D: 5
b)
A: 3, B: 4, C: 2, D: 5
c)
A:2, B: 3, C: 5, D: 1
d)
A:3, B: 1, C: 2, D: 4
|
|
Avik Chawla answered |
Ptyalin digests the starch in the mouth. Pepsin is a proteolytic enzyme which breaks down the proteins into simple peptides. Renin is responsible for converting angiotensinogen to angiotensin. Oxytocin is a hormone that stimulates the contraction of smooth muscles of the body.
What is the term for the process in which different crops are grown in a cycle to prevent soil-borne diseases?- a)Crop rotation
- b)Crop fusion
- c)Crop isolation
- d)Crop consolidation
Correct answer is option 'A'. Can you explain this answer?
a)
Crop rotation
b)
Crop fusion
c)
Crop isolation
d)
Crop consolidation
|
|
Anand Chakraborty answered |
Explanation:
Crop Rotation:
Crop rotation is the process of growing different crops in the same area in sequential seasons or years. This practice is beneficial for various reasons, including preventing soil-borne diseases.
Preventing Soil-borne Diseases:
- When the same crop is grown in the same field year after year, it can lead to an increase in soil-borne diseases.
- By rotating different crops, the pathogens specific to one type of plant are disrupted, reducing the likelihood of disease outbreaks.
- Different crops have different nutrient requirements, which helps improve soil fertility and structure, further reducing the risk of diseases.
How Crop Rotation Works:
- The cycle of crops is planned in a way that complements each other in terms of nutrient uptake and disease resistance.
- For example, legumes like peas and beans can fix nitrogen into the soil, benefiting subsequent crops like corn or wheat.
- Root crops can break up compacted soil and reduce the buildup of specific diseases.
Benefits of Crop Rotation:
- Preventing soil-borne diseases is just one of the benefits of crop rotation.
- It also helps in weed control, pest management, and overall soil health.
- Crop rotation can lead to increased crop yields and reduced dependency on chemical inputs.
In conclusion, crop rotation is a sustainable agricultural practice that not only prevents soil-borne diseases but also improves soil health and overall crop productivity.
Crop Rotation:
Crop rotation is the process of growing different crops in the same area in sequential seasons or years. This practice is beneficial for various reasons, including preventing soil-borne diseases.
Preventing Soil-borne Diseases:
- When the same crop is grown in the same field year after year, it can lead to an increase in soil-borne diseases.
- By rotating different crops, the pathogens specific to one type of plant are disrupted, reducing the likelihood of disease outbreaks.
- Different crops have different nutrient requirements, which helps improve soil fertility and structure, further reducing the risk of diseases.
How Crop Rotation Works:
- The cycle of crops is planned in a way that complements each other in terms of nutrient uptake and disease resistance.
- For example, legumes like peas and beans can fix nitrogen into the soil, benefiting subsequent crops like corn or wheat.
- Root crops can break up compacted soil and reduce the buildup of specific diseases.
Benefits of Crop Rotation:
- Preventing soil-borne diseases is just one of the benefits of crop rotation.
- It also helps in weed control, pest management, and overall soil health.
- Crop rotation can lead to increased crop yields and reduced dependency on chemical inputs.
In conclusion, crop rotation is a sustainable agricultural practice that not only prevents soil-borne diseases but also improves soil health and overall crop productivity.
Which of the following is the correct sequence of the different phases of cell division?
1. Anaphase
2. Telophase
3. Prophase
4. Metaphase- a)1, 2, 3, 4
- b)1, 3, 2, 4
- c)3, 1, 4, 2
- d)3, 4, 1, 2
Correct answer is option 'D'. Can you explain this answer?
Which of the following is the correct sequence of the different phases of cell division?
1. Anaphase
2. Telophase
3. Prophase
4. Metaphase
1. Anaphase
2. Telophase
3. Prophase
4. Metaphase
a)
1, 2, 3, 4
b)
1, 3, 2, 4
c)
3, 1, 4, 2
d)
3, 4, 1, 2
|
|
Raksha Deshpande answered |
Somatic cells undergo mitosis during the cell cycle. The phase in which the cells undergo division is called M-phase. The first stage of this phase is prophase, the second is metaphase in which the chromosomes come and lie at the equatorial plate. This stage is followed by anaphase in which the sister chromatids separate out and go to the poles. The telophase is the last stage when the cell’s cytoplasm is divided to give rise to two daughter cells.
Consider the following statements:
1. Sphagnum is used as a packing material for transporting living plants.
2. Drug ephedrine is obtained from stem of Sphagnum.
Q. Which of the statements given above is/are correct?- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
Consider the following statements:
1. Sphagnum is used as a packing material for transporting living plants.
2. Drug ephedrine is obtained from stem of Sphagnum.
Q. Which of the statements given above is/are correct?
1. Sphagnum is used as a packing material for transporting living plants.
2. Drug ephedrine is obtained from stem of Sphagnum.
Q. Which of the statements given above is/are correct?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Deepak Ghosh answered |
Sphagnum is also called as peat moss. These have leaf-like appendages that have many circular openings which enable them to absorb liquids readily. Thus they are commercially important as soil structure enhancer, packing material for living plants. Ephedrine is a sympathomimetic amine commonly used as a stimulant, appetite suppressant, concentration aid, decongestant. Ephedrine is obtained from the plant Ephedra sinica and other members of the Ephedra genus.
Match List-I with List-II and select the correct answer from the codes given below:
- a)A
- b)B
- c)C
- d)D
Correct answer is option 'B'. Can you explain this answer?
Match List-I with List-II and select the correct answer from the codes given below:
a)
A
b)
B
c)
C
d)
D
|
|
Sneha Kumar answered |
Progesterone is released from the female gonads. It has roles in the female menstrual cycle, pregnancy and embryogenesis. Growth hormone or somatropin or somatropin, is a peptide hormone that stimulates growth, cell reproduction and regeneration in humans and other animals, the pituitary gland secretes this hormone. The pancreas secretes insulin that regulates the sugar metabolism in the body. Cortisol is released from the zona fasciculata of the adrenal cortex in response to stress.
Consider the following statements:
1. The cell was discovered by Robert Hooke.
2. Nucleus was described by Robert Brown.
3. Plant cells generally have lysosomes.
Q. Which of the above statements is/are correct?- a)1 only
- b)1 and 2 only
- c)2 and 3 only
- d)1, 2 and 3
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements:
1. The cell was discovered by Robert Hooke.
2. Nucleus was described by Robert Brown.
3. Plant cells generally have lysosomes.
Q. Which of the above statements is/are correct?
1. The cell was discovered by Robert Hooke.
2. Nucleus was described by Robert Brown.
3. Plant cells generally have lysosomes.
Q. Which of the above statements is/are correct?
a)
1 only
b)
1 and 2 only
c)
2 and 3 only
d)
1, 2 and 3
|
|
Anjali Rane answered |
The cell was discovered by Robert Hooke in 1665. The nucleus was the first organelle to be discovered. The oldest description of the nucleus was given by Anton van Leeuwenhoek (1632– 1723). But the nucleus was described in more detail for the first time in 1831 by Scottish botanist Robert Brown in a talk at the Linnean Society of London. Lysosomes are found in animal cells but their presence in yeasts and plant cells is disputed.
Consider the following statements:
1. Lichens show symbiotic association between algae and bryophytes.
2. Lichens are sensitive to SO2 and indicators of pollution.
Q. Which of the statements given above is/are correct about lichens?- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Consider the following statements:
1. Lichens show symbiotic association between algae and bryophytes.
2. Lichens are sensitive to SO2 and indicators of pollution.
Q. Which of the statements given above is/are correct about lichens?
1. Lichens show symbiotic association between algae and bryophytes.
2. Lichens are sensitive to SO2 and indicators of pollution.
Q. Which of the statements given above is/are correct about lichens?
a)
1 only
b)
2 only
c)
Both 1 and 2
d)
Neither 1 nor 2
|
|
Yashvi Mukherjee answered |
Lichens are the symbiotic association of algae and fungi. The algal member is generally a green alga or blue-green alga. The fungal partner is usually of Ascomycota. Lichens are sensitive to pH change, thus making them good indicators of pollution or SO2 as the later makes H2SO4 with water.
Consider the following statement about lymph
1. Lymph is another medium of circulation in the human body.
2. Lymph flows in only one direction - from the heart to body tissues.
3. Lymph protects the body by killing the germs drained out of the body tissues with the help of Lymphocytes.- a)1 and 3 are correct
- b)1 and 2 are correct
- c)2 and 3 are correct
- d)1, 2 and 3 are correct
Correct answer is option 'A'. Can you explain this answer?
Consider the following statement about lymph
1. Lymph is another medium of circulation in the human body.
2. Lymph flows in only one direction - from the heart to body tissues.
3. Lymph protects the body by killing the germs drained out of the body tissues with the help of Lymphocytes.
1. Lymph is another medium of circulation in the human body.
2. Lymph flows in only one direction - from the heart to body tissues.
3. Lymph protects the body by killing the germs drained out of the body tissues with the help of Lymphocytes.
a)
1 and 3 are correct
b)
1 and 2 are correct
c)
2 and 3 are correct
d)
1, 2 and 3 are correct
|
|
Prateek Dasgupta answered |
The correct answer is option 'A' - 1 and 3 are correct. Let's explain each statement in detail:
1. Lymph is another medium of circulation in the human body:
Lymph is a clear fluid that circulates throughout the body via the lymphatic system. It is derived from the interstitial fluid that surrounds the body's cells. The lymphatic system is a network of vessels, lymph nodes, and organs that help transport lymph and play a crucial role in the body's immune response. Lymphatic vessels are present in almost all tissues and organs of the body.
2. Lymph flows in only one direction - from the heart to body tissues:
This statement is incorrect. Lymph flows in one direction, but it flows from the body tissues towards the heart. The movement of lymph is facilitated by the contraction of smooth muscles in the walls of lymphatic vessels, as well as by the contraction of skeletal muscles during physical activity. Valves in the lymphatic vessels prevent backward flow, ensuring that lymph moves towards the heart.
3. Lymph protects the body by killing the germs drained out of the body tissues with the help of Lymphocytes:
This statement is correct. Lymph plays a crucial role in the body's immune response. Lymphocytes are a type of white blood cell that is present in the lymphatic system. They are responsible for recognizing and destroying pathogens, such as bacteria and viruses, that enter the body. Lymphocytes are involved in both the innate and adaptive immune responses. They produce antibodies and coordinate the immune response to eliminate harmful substances and protect the body against infections.
In summary, lymph is a medium of circulation in the human body, flowing from the body tissues towards the heart. It plays a vital role in the body's immune response by killing germs with the help of lymphocytes. Therefore, statements 1 and 3 are correct.
1. Lymph is another medium of circulation in the human body:
Lymph is a clear fluid that circulates throughout the body via the lymphatic system. It is derived from the interstitial fluid that surrounds the body's cells. The lymphatic system is a network of vessels, lymph nodes, and organs that help transport lymph and play a crucial role in the body's immune response. Lymphatic vessels are present in almost all tissues and organs of the body.
2. Lymph flows in only one direction - from the heart to body tissues:
This statement is incorrect. Lymph flows in one direction, but it flows from the body tissues towards the heart. The movement of lymph is facilitated by the contraction of smooth muscles in the walls of lymphatic vessels, as well as by the contraction of skeletal muscles during physical activity. Valves in the lymphatic vessels prevent backward flow, ensuring that lymph moves towards the heart.
3. Lymph protects the body by killing the germs drained out of the body tissues with the help of Lymphocytes:
This statement is correct. Lymph plays a crucial role in the body's immune response. Lymphocytes are a type of white blood cell that is present in the lymphatic system. They are responsible for recognizing and destroying pathogens, such as bacteria and viruses, that enter the body. Lymphocytes are involved in both the innate and adaptive immune responses. They produce antibodies and coordinate the immune response to eliminate harmful substances and protect the body against infections.
In summary, lymph is a medium of circulation in the human body, flowing from the body tissues towards the heart. It plays a vital role in the body's immune response by killing germs with the help of lymphocytes. Therefore, statements 1 and 3 are correct.
What is the primary function of the cornea in the eye?- a)Regulation of light entering the eye
- b)Production of tears
- c)Formation of images on the retina
- d)Protection of the eyeball
Correct answer is option 'D'. Can you explain this answer?
a)
Regulation of light entering the eye
b)
Production of tears
c)
Formation of images on the retina
d)
Protection of the eyeball
|
Ias Masters answered |
The text states that the cornea is a transparent membrane that protects the eyeball.
Which pigment is responsible for carrying oxygen and carbon dioxide in human blood?- a)Chlorocruorin
- b)Haemocyanin
- c)Haemoglobin
- d)Pinnaglobin
Correct answer is option 'C'. Can you explain this answer?
a)
Chlorocruorin
b)
Haemocyanin
c)
Haemoglobin
d)
Pinnaglobin
|
Goel UPSC Coaching Center answered |
In humans, the pigment responsible for carrying oxygen and carbon dioxide in the blood is haemoglobin, as mentioned in the text.
Which type of fats are solid at room temperature and can lead to health issues like heart diseases?- a)Unsaturated fats
- b)Trans fats
- c)Saturated fats
- d)Polyunsaturated fats
Correct answer is option 'C'. Can you explain this answer?
a)
Unsaturated fats
b)
Trans fats
c)
Saturated fats
d)
Polyunsaturated fats
|
|
Future Foundation Institute answered |
Saturated fats are solid at room temperature and can contribute to health issues like heart diseases. They can lead to the build-up of plaque in arteries, causing blockages.
What is the primary form in which excess carbohydrates are stored in the body?- a)Glucose
- b)Amino acids
- c)Glycogen
- d)Fatty acids
Correct answer is option 'C'. Can you explain this answer?
a)
Glucose
b)
Amino acids
c)
Glycogen
d)
Fatty acids
|
Lohit Matani answered |
Excess carbohydrates are stored in the liver and muscles in the form of glycogen. Glycogen serves as a reserve of energy that can be readily converted back into glucose when needed.
What is the term for the minimum amount of energy required by the body for essential functions like circulation and breathing?- a)Basal metabolic rate (BMR)
- b)Glycogenesis
- c)Digestion rate
- d)Resting metabolic rate (RMR)
Correct answer is option 'A'. Can you explain this answer?
a)
Basal metabolic rate (BMR)
b)
Glycogenesis
c)
Digestion rate
d)
Resting metabolic rate (RMR)
|
Capstone Ias Learning answered |
The minimum amount of energy required by the body for essential functions like circulation, breathing, and temperature regulation is termed as basal metabolic rate (BMR).
Where are the end-products of digestion absorbed in the digestive system?- a)Stomach
- b)Small intestine
- c)Large intestine
- d)Mouth
Correct answer is option 'B'. Can you explain this answer?
a)
Stomach
b)
Small intestine
c)
Large intestine
d)
Mouth
|
|
Capstone Ias Learning answered |
The end-products of digestion, such as amino acids, monosaccharides, and fatty acids, are primarily absorbed in the small intestine, particularly in the villi.
What is the term for a diet that does not meet an individual's nutritional requirements?- a)Malnutrition
- b)Balanced diet
- c)Glycogenesis
- d)Basal metabolic rate
Correct answer is option 'A'. Can you explain this answer?
a)
Malnutrition
b)
Balanced diet
c)
Glycogenesis
d)
Basal metabolic rate
|
Spectrum Coaching Institute answered |
A diet that does not meet an individual's nutritional requirements is called malnutrition. Malnutrition can result from an inadequate intake of essential nutrients.
What is the function of thrombocytes or blood platelets in blood clotting?- a)Initiating the formation of blood clots
- b)Transporting oxygen to tissues
- c)Phagocytosis of bacteria
- d)Synthesis of plasma proteins
Correct answer is option 'A'. Can you explain this answer?
a)
Initiating the formation of blood clots
b)
Transporting oxygen to tissues
c)
Phagocytosis of bacteria
d)
Synthesis of plasma proteins
|
EduRev UPSC answered |
Thrombocytes, also known as blood platelets, play a vital role in the initiation of blood clot formation. When there is an injury or damage to blood vessels, platelets adhere to the site and release substances that trigger the clotting cascade, leading to the formation of a blood clot. This process helps prevent excessive bleeding.
What is the composition of normal urine in terms of pH?- a)Highly acidic (pH below 2.0)
- b)Neutral (pH 7.0)
- c)Slightly alkaline (pH above 8.0)
- d)Slightly acidic (pH around 6.0)
Correct answer is option 'D'. Can you explain this answer?
a)
Highly acidic (pH below 2.0)
b)
Neutral (pH 7.0)
c)
Slightly alkaline (pH above 8.0)
d)
Slightly acidic (pH around 6.0)
|
|
Capstone Ias Learning answered |
Normal urine is slightly acidic, typically with a pH value around 6.0. However, the pH of urine can vary slightly depending on factors such as diet and overall health.
What are the four main types of animal tissues?- a)Epithelial, Connective, Muscular, Skeletal
- b)Epithelial, Muscular, Connective, Nervous
- c)Epidermal, Cartilaginous, Cardiac, Nervous
- d)Endodermal, Exodermal, Connective, Visceral
Correct answer is option 'B'. Can you explain this answer?
a)
Epithelial, Connective, Muscular, Skeletal
b)
Epithelial, Muscular, Connective, Nervous
c)
Epidermal, Cartilaginous, Cardiac, Nervous
d)
Endodermal, Exodermal, Connective, Visceral
|
Valor Academy answered |
The four main types of animal tissues are epithelial, muscular, connective, and nervous. Epithelial tissues form linings of internal organs and cover the body's surface. Muscular tissues are responsible for movement. Connective tissues bind and support other tissues and organs. Nervous tissues are specialized for receiving and conducting messages or information.
Which function is NOT associated with epithelial tissues?- a)Protection
- b)Secretion
- c)Conduction
- d)Absorption
Correct answer is option 'C'. Can you explain this answer?
a)
Protection
b)
Secretion
c)
Conduction
d)
Absorption
|
|
Capstone Ias Learning answered |
Epithelial tissues serve functions such as protection, secretion, absorption, and sensory reception. However, they are not typically involved in conduction. Conduction is a function associated with nervous tissues.
Chapter doubts & questions for Animal Kingdom - Science & Technology for State PSC Exams 2025 is part of BPSC (Bihar) exam preparation. The chapters have been prepared according to the BPSC (Bihar) exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for BPSC (Bihar) 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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