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All questions of Nutrition in Animals for Class 6 Exam
Amoeba obtain the food using finger-like projection calledA: PseudopodiaB: SpiraclesC: DiaphragmD: MouthCorrect answer is 'A'. Can you explain this answer?
Amoeba obtain the food using finger-like projection called
A: Pseudopodia
B: Spiracles
C: Diaphragm
D: Mouth
Correct answer is 'A'. Can you explain this answer?
|
Abhay Menon answered |
The finger-like projections are called “pseudopodia“. They not only help in engulfing food molecules but also help the organism in movement.
Grass is rich in ________ a special kind of carbohydrate which can only be digested by ruminants.- a)Glucose
- b)Cellulose
- c)Sucrose
- d)Fructose
Correct answer is option 'B'. Can you explain this answer?
Grass is rich in ________ a special kind of carbohydrate which can only be digested by ruminants.
a)
Glucose
b)
Cellulose
c)
Sucrose
d)
Fructose
|
Aarav Sen answered |
Cellulose is a type of carbohydrate that can be digested by ruminants and not by humans.
Ruminants have a large sac-like structure called rumen between the oesophagus and the small intestine. The cellulose of the food is digested here by the action of certain bacteria which are not present in humans.
Ruminants have a large sac-like structure called rumen between the oesophagus and the small intestine. The cellulose of the food is digested here by the action of certain bacteria which are not present in humans.
Mode of nutrition in amoeba is- a)Herbivores
- b)Holozoic
- c)Omnivores
- d)Autotrophic
Correct answer is option 'B'. Can you explain this answer?
Mode of nutrition in amoeba is
a)
Herbivores
b)
Holozoic
c)
Omnivores
d)
Autotrophic
|
Anmol Iyer answered |
Nutrition in amoeba is holozoic. Thus, solid food particles are ingested which are then acted upon by enzymes and digested. It is an omnivore, feeding on both plants and animals. Its diet includes bacteria, microscopic plants like the diatoms, minute algae, microscopic animals like other protozoa, nematodes and even dead organic matter.
1) What process allows digested food to pass into the blood vessels in the wall of the intestine?- a)Excretion
- b)Digestion
- c)Assimilation
- d)Absorption
Correct answer is option 'D'. Can you explain this answer?
1) What process allows digested food to pass into the blood vessels in the wall of the intestine?
a)
Excretion
b)
Digestion
c)
Assimilation
d)
Absorption
|
Rhea Reddy answered |
The process of digested food passing into the blood vessels in the wall of the intestine is called absorption.
Absorption of water in alimentary canal takes place in
- a)Small intestine
- b)Large intestine
- c)Rectum
- d)Stomach
Correct answer is option 'B'. Can you explain this answer?
Absorption of water in alimentary canal takes place in
a)
Small intestine
b)
Large intestine
c)
Rectum
d)
Stomach
|
Pooja Banerjee answered |
Absorption of water in alimentary canal takes place in the Large intestine.
The process of absorption refers to the movement of water, nutrients, and other substances from the digestive system into the bloodstream. In the case of water absorption, it plays a crucial role in maintaining the body's fluid balance and preventing dehydration. The absorption of water in the alimentary canal specifically occurs in the large intestine.
Here is a detailed explanation of water absorption in the large intestine:
Anatomy of the Large Intestine:
- The large intestine is the final section of the digestive tract, following the small intestine.
- It is a wider and shorter tube that measures about 1.5 meters in length.
- The major parts of the large intestine include the cecum, colon, rectum, and anal canal.
Process of Water Absorption in the Large Intestine:
1. Residue from the small intestine enters the large intestine through the ileocecal valve.
2. In the large intestine, the residue passes through the ascending colon, transverse colon, descending colon, sigmoid colon, and finally reaches the rectum.
3. The large intestine mainly functions to reabsorb water and electrolytes from this residue before it is eliminated as feces.
4. The walls of the large intestine are lined with specialized cells called colonocytes that facilitate water absorption.
5. The colonocytes actively transport sodium ions out of the lumen of the large intestine and into the interstitial fluid.
6. The movement of sodium ions creates an osmotic gradient, causing water to follow passively through osmosis.
7. As a result, water is absorbed from the residue and into the bloodstream, helping to maintain the body's hydration levels.
8. The remaining residue, which is now more solid, continues to move through the large intestine and eventually reaches the rectum for elimination.
Significance of Water Absorption in the Large Intestine:
- The large intestine plays a crucial role in maintaining water balance in the body.
- It helps prevent dehydration by reabsorbing water from the residue, which would otherwise be lost as feces.
- The absorbed water is then transported to the bloodstream, where it can be distributed to various parts of the body.
- Adequate water absorption in the large intestine is essential for maintaining normal bowel movements and preventing constipation.
In conclusion, the absorption of water in the alimentary canal takes place in the large intestine. The walls of the large intestine, particularly the colonocytes, actively transport sodium ions, creating an osmotic gradient that facilitates water absorption through osmosis. This process helps maintain the body's fluid balance and prevents dehydration.
The process of absorption refers to the movement of water, nutrients, and other substances from the digestive system into the bloodstream. In the case of water absorption, it plays a crucial role in maintaining the body's fluid balance and preventing dehydration. The absorption of water in the alimentary canal specifically occurs in the large intestine.
Here is a detailed explanation of water absorption in the large intestine:
Anatomy of the Large Intestine:
- The large intestine is the final section of the digestive tract, following the small intestine.
- It is a wider and shorter tube that measures about 1.5 meters in length.
- The major parts of the large intestine include the cecum, colon, rectum, and anal canal.
Process of Water Absorption in the Large Intestine:
1. Residue from the small intestine enters the large intestine through the ileocecal valve.
2. In the large intestine, the residue passes through the ascending colon, transverse colon, descending colon, sigmoid colon, and finally reaches the rectum.
3. The large intestine mainly functions to reabsorb water and electrolytes from this residue before it is eliminated as feces.
4. The walls of the large intestine are lined with specialized cells called colonocytes that facilitate water absorption.
5. The colonocytes actively transport sodium ions out of the lumen of the large intestine and into the interstitial fluid.
6. The movement of sodium ions creates an osmotic gradient, causing water to follow passively through osmosis.
7. As a result, water is absorbed from the residue and into the bloodstream, helping to maintain the body's hydration levels.
8. The remaining residue, which is now more solid, continues to move through the large intestine and eventually reaches the rectum for elimination.
Significance of Water Absorption in the Large Intestine:
- The large intestine plays a crucial role in maintaining water balance in the body.
- It helps prevent dehydration by reabsorbing water from the residue, which would otherwise be lost as feces.
- The absorbed water is then transported to the bloodstream, where it can be distributed to various parts of the body.
- Adequate water absorption in the large intestine is essential for maintaining normal bowel movements and preventing constipation.
In conclusion, the absorption of water in the alimentary canal takes place in the large intestine. The walls of the large intestine, particularly the colonocytes, actively transport sodium ions, creating an osmotic gradient that facilitates water absorption through osmosis. This process helps maintain the body's fluid balance and prevents dehydration.
The process of chewing of food is called- a)Digestion
- b)Ingestion
- c)Mastication
- d)Emulsification
Correct answer is option 'C'. Can you explain this answer?
The process of chewing of food is called
a)
Digestion
b)
Ingestion
c)
Mastication
d)
Emulsification
|
Snehal Basak answered |
The process of chewing food is called mastication. Teeth and tongue help in mastication of food.
Small intestine contain small finger-like projections to absorb digested food is called- a)Pseudopodia
- b)Cilia
- c)Villi
- d)Flagella
Correct answer is option 'C'. Can you explain this answer?
Small intestine contain small finger-like projections to absorb digested food is called
a)
Pseudopodia
b)
Cilia
c)
Villi
d)
Flagella
|
Madhurima Kulkarni answered |
The mucosa is a mucous membrane. It is the innermost lining of the small intestine. It is made up of a:
- the layer of epithelial cells (called the epithelium)
- a layer of loose connective tissue (called the lamina propria)
- the very thin layer of muscle (called the muscularis mucosa)
The inner surface of the mucosa has many finger-like projections called villi. The villi increase the surface area of the small intestine, which helps it absorb digested food.
Bile juice is stored in- a)Stomach
- b)Gall bladder
- c)Liver
- d)Urinary bladder
Correct answer is option 'B'. Can you explain this answer?
Bile juice is stored in
a)
Stomach
b)
Gall bladder
c)
Liver
d)
Urinary bladder
|
Divya Joshi answered |
Bile salts are one of the primary components of bile. Bile is a greenish-yellow fluid made by the liver and stored in our gallbladder.
Which of the following component of food do not provide energy of body building?- a)Roughage
- b)Proteins
- c)Carbohydrates
- d)Fats
Correct answer is option 'A'. Can you explain this answer?
Which of the following component of food do not provide energy of body building?
a)
Roughage
b)
Proteins
c)
Carbohydrates
d)
Fats
|
Nandini Sengupta answered |
Roughage is a component of food which do not provides energy or help in body building. Roughage helps in movement of food in alimentary canal.
Bile is secreted from- a)Pancreas
- b)Small intestine
- c)Stomach
- d)Liver
Correct answer is option 'D'. Can you explain this answer?
Bile is secreted from
a)
Pancreas
b)
Small intestine
c)
Stomach
d)
Liver
|
Ananya Das answered |
Bile is secreted from liver that contain bile salt. Bile salt helps in emulsification of fat.
In amoeba, digestion of food takes place inside- a)Food pipe
- b)Gizzard
- c)Food vacuole
- d)Stomach
Correct answer is option 'C'. Can you explain this answer?
In amoeba, digestion of food takes place inside
a)
Food pipe
b)
Gizzard
c)
Food vacuole
d)
Stomach
|
Geetika Shah answered |
The mode of nutrition in amoeba is holozoic. Amoeba digests the food inside food vacuole that contain enzyme for digestion.
Ingestion is the process in which organisma)intake of food inside the body b)Nutrient are utilisedc)Digest the bodyd)Undigested food are removedCorrect answer is 'A'. Can you explain this answer?
|
Kavya Rane answered |
While ingestion refers to the taking in of a substance, there are a multitude of mechanisms by which various organisms do this. Everything from the tiny cells of your body, single-celled organisms, such as amoebas and paramecium, bacteria, and yeasts to animals and humans ingest nutritive substances.
Which one is the largest gland in the human body?- a)Pancreas
- b)Pituitary gland
- c)Liver
- d)Gall bladder
Correct answer is option 'C'. Can you explain this answer?
Which one is the largest gland in the human body?
a)
Pancreas
b)
Pituitary gland
c)
Liver
d)
Gall bladder
|
Gauri Basak answered |
Liver is the largest gland in the human body. Liver secretes bile juice that contains bile salt. Emulsification of fat occurs by the action of bile salt.
What does animal nutrition include?- a)Nutrient requirement
- b)Mode of intake of food
- c)Utilization of food in the body
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
What does animal nutrition include?
a)
Nutrient requirement
b)
Mode of intake of food
c)
Utilization of food in the body
d)
All of the above
|
Academic Studio answered |
Production of Bile in the Liver
- The liver is the primary organ responsible for the production of bile in the human body.
- Bile is a yellow-green fluid that aids in the digestion and absorption of fats in the small intestine.
- Hepatocytes, the main functional cells of the liver, synthesize bile by extracting waste products, cholesterol, and other substances from the blood.
- Bile is then stored and concentrated in the gallbladder before being released into the small intestine to help with the digestion of fats.
- The liver is the primary organ responsible for the production of bile in the human body.
- Bile is a yellow-green fluid that aids in the digestion and absorption of fats in the small intestine.
- Hepatocytes, the main functional cells of the liver, synthesize bile by extracting waste products, cholesterol, and other substances from the blood.
- Bile is then stored and concentrated in the gallbladder before being released into the small intestine to help with the digestion of fats.
The type of digestion which takes place within the cell is termed as- a)Extra cellular digestion
- b)Intra tissue digestion
- c)Inter cellular digestion
- d)Intracellular digestion
Correct answer is 'D'. Can you explain this answer?
The type of digestion which takes place within the cell is termed as
a)
Extra cellular digestion
b)
Intra tissue digestion
c)
Inter cellular digestion
d)
Intracellular digestion
|
Anagha Choudhury answered |
Intracellular digestion, or cellular digestion, is the process in which large molecules, from outside or from a cell’s own metabolism, are broken down into smaller molecules within the cell. Products and wastes of intracellular digestion are either used by the cell or excreted.
Intracellular digestion is classified into two types: heterophagic intracellular digestion and autophagic intracellular digestion.
Peristalsis is theA: Slow movement of foodB: Contraction and expansion of muscles of oesophagusC: Downward movement of digested foodD: Assimilation of foodCorrect answer is 'B'. Can you explain this answer?
Peristalsis is the
A: Slow movement of food
B: Contraction and expansion of muscles of oesophagus
C: Downward movement of digested food
D: Assimilation of food
|
Prisha Banerjee answered |
Peristalsis is a series of wave-like muscle contractions that moves food to different processing stations in the digestive tract. The process of peristalsis begins in the oesophagus when a bolus of food is swallowed. The strong wave-like motions of the smooth muscle in the oesophagus carry the food to the stomach, where it is churned into a liquid mixture called chyme.
What is the primary characteristic of diarrhoea?- a) Frequent urination
- b) Watery stool
- c) Headaches
- d) Fever
Correct answer is option 'B'. Can you explain this answer?
What is the primary characteristic of diarrhoea?
a)
Frequent urination
b)
Watery stool
c)
Headaches
d)
Fever
|
Mansi rane answered |
Understanding Diarrhoea
Diarrhoea is primarily characterized by the frequent passage of watery stool. This condition can affect individuals of all ages and can arise from various causes, including infections, dietary changes, or underlying health issues.
Key Characteristics of Diarrhoea:
- Watery Stool: The hallmark of diarrhoea is the consistency of the stool. It is often loose or watery, which differentiates it from normal bowel movements.
- Frequency: Individuals may experience an increased frequency of bowel movements, often more than three times a day.
- Causes: Diarrhoea can result from viral infections (like norovirus), bacterial infections (like E. coli), parasites, or even food intolerances.
- Dehydration Risk: One of the significant concerns associated with diarrhoea is dehydration. The body loses fluids and electrolytes rapidly, making it essential to stay hydrated.
Other Symptoms that May Accompany Diarrhoea:
- Fever: While fever can be present, it is not a defining characteristic of diarrhoea itself.
- Abdominal Pain: Cramping and discomfort in the abdomen may occur alongside diarrhoea.
- Nausea and Vomiting: Some individuals may also experience nausea or vomiting, but these are not defining symptoms.
Conclusion:
In summary, while other symptoms can accompany diarrhoea, the primary characteristic is the presence of watery stool. Understanding this can help in identifying the condition and seeking appropriate treatment.
Diarrhoea is primarily characterized by the frequent passage of watery stool. This condition can affect individuals of all ages and can arise from various causes, including infections, dietary changes, or underlying health issues.
Key Characteristics of Diarrhoea:
- Watery Stool: The hallmark of diarrhoea is the consistency of the stool. It is often loose or watery, which differentiates it from normal bowel movements.
- Frequency: Individuals may experience an increased frequency of bowel movements, often more than three times a day.
- Causes: Diarrhoea can result from viral infections (like norovirus), bacterial infections (like E. coli), parasites, or even food intolerances.
- Dehydration Risk: One of the significant concerns associated with diarrhoea is dehydration. The body loses fluids and electrolytes rapidly, making it essential to stay hydrated.
Other Symptoms that May Accompany Diarrhoea:
- Fever: While fever can be present, it is not a defining characteristic of diarrhoea itself.
- Abdominal Pain: Cramping and discomfort in the abdomen may occur alongside diarrhoea.
- Nausea and Vomiting: Some individuals may also experience nausea or vomiting, but these are not defining symptoms.
Conclusion:
In summary, while other symptoms can accompany diarrhoea, the primary characteristic is the presence of watery stool. Understanding this can help in identifying the condition and seeking appropriate treatment.
The sharp teeth used for tearing food is called- a)Molars
- b)Premolars
- c)Incisors
- d)Canines
Correct answer is option 'D'. Can you explain this answer?
The sharp teeth used for tearing food is called
a)
Molars
b)
Premolars
c)
Incisors
d)
Canines
|
Anshika Saha answered |
Canines are sharp teeth used for tearing food. Canine is more prominent in carnivores to tear the meat.
Which one is a unicellular organism?- a)Frog
- b)Hydra
- c)Amoeba
- d)Ant
Correct answer is option 'C'. Can you explain this answer?
Which one is a unicellular organism?
a)
Frog
b)
Hydra
c)
Amoeba
d)
Ant
|
Anand Ghoshal answered |
Those organisms whose body is made up of only one cell is called unicellular organism. Amoeba is a unicellular organism.
Which juice is released by the stomach to aid digestion?
- a)Pancreatic juice
- b)Bile juice
- c)Gastric juice
- d)Intestinal juice
Correct answer is option 'C'. Can you explain this answer?
Which juice is released by the stomach to aid digestion?
a)
Pancreatic juice
b)
Bile juice
c)
Gastric juice
d)
Intestinal juice
|
Rainbow Rise Classes answered |
The stomach releases digestive juices, including hydrochloric acid and enzymes, to break down food into simpler substances for easier digestion.
|
Keystone Instructors answered |
Salivary glands in our mouth produce saliva. Saliva helps in breaking down food while chewing and swallowing. It also contains enzymes that start the digestion process.
Peristalsis is the- a)Slow movement of food
- b)Contraction and expansion of muscles of oesophagus
- c)Downward movement of digested food
- d)Assimilation of food
Correct answer is option 'B'. Can you explain this answer?
Peristalsis is the
a)
Slow movement of food
b)
Contraction and expansion of muscles of oesophagus
c)
Downward movement of digested food
d)
Assimilation of food
|
|
Pranavi Roy answered |
Peristalsis is the contraction and expansion of muscles of oesophagus for passage of food towards stomach. As the food passes through oesophagus the wall of it expand to allow passage of food.
Which of the following pair of teeth differ in structure but are similar in function?- a)Canines and incisors
- b)Molars and premolars
- c)Incisors and molars
- d)Premolars and canines
Correct answer is option 'B'. Can you explain this answer?
Which of the following pair of teeth differ in structure but are similar in function?
a)
Canines and incisors
b)
Molars and premolars
c)
Incisors and molars
d)
Premolars and canines
|
|
Rhea Reddy answered |
The molars (12 in number) are the largest teeth of all whereas the premolars (8 in number) present next to molars.
The function of these types of teeth is similar, i.e. crushing and grinding of food.
The function of these types of teeth is similar, i.e. crushing and grinding of food.
Where does the digestion of proteins begin in humans?
- a)Mouth
- b)Stomach
- c) Small intestine
- d) Large intestine
Correct answer is option 'B'. Can you explain this answer?
Where does the digestion of proteins begin in humans?
a)
Mouth
b)
Stomach
c)
Small intestine
d)
Large intestine
|
Ashwat Plays answered |
Food goes to the stomach first where the digestion of proteins begin.
Biological catalyst that breakdown the food into simpler form is called- a)Acids
- b)Bases
- c)Alkalies
- d)Enzyme
Correct answer is option 'D'. Can you explain this answer?
Biological catalyst that breakdown the food into simpler form is called
a)
Acids
b)
Bases
c)
Alkalies
d)
Enzyme
|
Lavanya Menon answered |
Enzymes are biological catalyst that breakdown the complex food into simple form. Enzymes are released from exocrine glands.
What is the role of villi in the intestine?- a)To make the stomach wider
- b)To absorb food in the small intestine
- c)To help in swallowing food
- d)To produce bile juice
Correct answer is option 'B'. Can you explain this answer?
What is the role of villi in the intestine?
a)
To make the stomach wider
b)
To absorb food in the small intestine
c)
To help in swallowing food
d)
To produce bile juice
|
Harsh Goyal answered |
Role of Villi in the Intestine:
Villi are small, finger-like projections found in the small intestine that play a crucial role in the process of digestion and absorption of nutrients from food. Here are the key points explaining the role of villi in the intestine:
Increased Surface Area:
- Villi increase the surface area of the small intestine, allowing for more efficient absorption of nutrients from food.
- The large surface area provided by villi helps in maximizing the contact between the digested food and the absorptive cells.
Absorption of Nutrients:
- Villi contain specialized cells called enterocytes that are responsible for absorbing nutrients such as sugars, amino acids, fatty acids, and vitamins from the digested food.
- These nutrients are then transported into the bloodstream for distribution to the cells in the body.
Microvilli:
- Each individual enterocyte on the surface of a villus is covered in even smaller projections called microvilli, further increasing the surface area for absorption.
- The microvilli contain enzymes that aid in the breakdown of food molecules, facilitating absorption.
Efficient Nutrient Absorption:
- The combination of villi and microvilli in the small intestine ensures efficient absorption of nutrients, essential for providing energy and building blocks for the body.
- Without villi, the absorption of nutrients would be significantly reduced, leading to malnutrition and other health issues.
In conclusion, villi in the intestine play a vital role in the absorption of nutrients from food by increasing the surface area available for absorption and facilitating the efficient transfer of nutrients into the bloodstream.
Villi are small, finger-like projections found in the small intestine that play a crucial role in the process of digestion and absorption of nutrients from food. Here are the key points explaining the role of villi in the intestine:
Increased Surface Area:
- Villi increase the surface area of the small intestine, allowing for more efficient absorption of nutrients from food.
- The large surface area provided by villi helps in maximizing the contact between the digested food and the absorptive cells.
Absorption of Nutrients:
- Villi contain specialized cells called enterocytes that are responsible for absorbing nutrients such as sugars, amino acids, fatty acids, and vitamins from the digested food.
- These nutrients are then transported into the bloodstream for distribution to the cells in the body.
Microvilli:
- Each individual enterocyte on the surface of a villus is covered in even smaller projections called microvilli, further increasing the surface area for absorption.
- The microvilli contain enzymes that aid in the breakdown of food molecules, facilitating absorption.
Efficient Nutrient Absorption:
- The combination of villi and microvilli in the small intestine ensures efficient absorption of nutrients, essential for providing energy and building blocks for the body.
- Without villi, the absorption of nutrients would be significantly reduced, leading to malnutrition and other health issues.
In conclusion, villi in the intestine play a vital role in the absorption of nutrients from food by increasing the surface area available for absorption and facilitating the efficient transfer of nutrients into the bloodstream.
Mechanism in which amoeba takes in O2 and gives out CO2 is called _______.
- a)Respiration
- b)Diffusion
- c)Assimilation
- d)Absorption
Correct answer is option 'B'. Can you explain this answer?
Mechanism in which amoeba takes in O2 and gives out CO2 is called _______.
a)
Respiration
b)
Diffusion
c)
Assimilation
d)
Absorption
|
|
Priyanka Sharma answered |
Amoeba gets oxygen gas dissolved in surrounding water through its plasma membrane by the process of diffusion.The carbon dioxide gas is also liberated in the surrounding water through the same process of diffusion.
The semi-solid mass which is produced after thoroughly mix up of food and gastric juice is called- a)bolus
- b)chyme
- c)bile
- d)villus
Correct answer is option 'B'. Can you explain this answer?
The semi-solid mass which is produced after thoroughly mix up of food and gastric juice is called
a)
bolus
b)
chyme
c)
bile
d)
villus
|
Diya Chavan answered |
The stomach stores the food for 4-5 hours. The food mixes thoroughly with the acidic gastric juice of the stomach by the churning movements of its muscular wall and is called the chyme. The proenzyme pepsinogen, on exposure to hydrochloric acid gets converted into the active enzyme pepsin, the proteolytic enzyme of the stomach. Pepsin converts proteins into proteoses and peptones (peptides).
What does saliva do to food?- a)Makes it sweeter
- b)Breaks down starch into sugars
- c)Changes its color
- d)Turns it into liquid
Correct answer is option 'B'. Can you explain this answer?
What does saliva do to food?
a)
Makes it sweeter
b)
Breaks down starch into sugars
c)
Changes its color
d)
Turns it into liquid
|
Pranav Majumdar answered |
Understanding the Role of Saliva in Digestion
Saliva plays a crucial role in the initial stages of digestion, particularly in breaking down carbohydrates. Here’s how it works:
Composition of Saliva
- Saliva is a watery fluid produced by salivary glands.
- It contains enzymes, electrolytes, mucus, and antibacterial compounds.
Enzymatic Action on Starch
- The primary enzyme in saliva is amylase, specifically salivary amylase.
- Amylase begins the process of breaking down starch, a complex carbohydrate, into simpler sugars like maltose.
Importance of Starch Breakdown
- Starch is a major source of energy found in foods like bread, rice, and potatoes.
- The breakdown into sugars makes it easier for the body to absorb and utilize these nutrients.
Other Functions of Saliva
- While saliva does make food easier to swallow by moistening it, it does not significantly change the color of food.
- It can enhance sweetness by breaking down starches, but the primary function remains the enzymatic breakdown.
Conclusion
In summary, the correct answer to the question about saliva's effect on food is option 'B': it breaks down starch into sugars. This enzymatic action is vital for efficient digestion and nutrient absorption, laying the groundwork for further digestive processes in the stomach and intestines.
Saliva plays a crucial role in the initial stages of digestion, particularly in breaking down carbohydrates. Here’s how it works:
Composition of Saliva
- Saliva is a watery fluid produced by salivary glands.
- It contains enzymes, electrolytes, mucus, and antibacterial compounds.
Enzymatic Action on Starch
- The primary enzyme in saliva is amylase, specifically salivary amylase.
- Amylase begins the process of breaking down starch, a complex carbohydrate, into simpler sugars like maltose.
Importance of Starch Breakdown
- Starch is a major source of energy found in foods like bread, rice, and potatoes.
- The breakdown into sugars makes it easier for the body to absorb and utilize these nutrients.
Other Functions of Saliva
- While saliva does make food easier to swallow by moistening it, it does not significantly change the color of food.
- It can enhance sweetness by breaking down starches, but the primary function remains the enzymatic breakdown.
Conclusion
In summary, the correct answer to the question about saliva's effect on food is option 'B': it breaks down starch into sugars. This enzymatic action is vital for efficient digestion and nutrient absorption, laying the groundwork for further digestive processes in the stomach and intestines.
The movement of food in food pipe is called- a)Linear movement
- b)Rectilinear movement
- c)Smooth movement
- d)Peristaltic movement
Correct answer is option 'D'. Can you explain this answer?
The movement of food in food pipe is called
a)
Linear movement
b)
Rectilinear movement
c)
Smooth movement
d)
Peristaltic movement
|
|
Prisha Banerjee answered |
The digestion starts in the mouth where the food mixes which saliva. Saliva is produced by the salivary glands which makes the food slimy and makes it easy to be swallowed. Once the food is salllowed then it enters to a long tube like structure called Oesophagus. The walls of the oesophagus contract and relax to produce wave like movements called Peristaltic movements. These movements help to move the food down into a big sack like structure called stomach.
Cellulose digestion in ruminants occurs in ________.
- a)Omasum
- b)Rumen
- c)Abomasum
- d)Reticulum
Correct answer is option 'B'. Can you explain this answer?
Cellulose digestion in ruminants occurs in ________.
a)
Omasum
b)
Rumen
c)
Abomasum
d)
Reticulum
|
|
Maanvi Prabhu answered |
Cellulose digestion in ruminants occurs in the rumen, which is part of the ruminant's four-chambered stomach:
In the rumen, bacteria break down cellulose through fermentation. The bacteria also convert the ingested food into cud through mechanical digestion.
Here's what happens in the rumen:
Mechanical processing: Plant material is mechanically processed in the rumen.
Exposure to bacteria: The plant material is exposed to bacteria that can break down cellulose.
Production of volatile fatty acids: Anaerobic microbes in the rumen ferment cellulose and hemicellulose to produce volatile fatty acids (VFAs). VFAs are the main nutrient source for the ruminant.
Ruminants, like cattle, are cud-chewing animals.
In the rumen, bacteria break down cellulose through fermentation. The bacteria also convert the ingested food into cud through mechanical digestion.
Here's what happens in the rumen:
Mechanical processing: Plant material is mechanically processed in the rumen.
Exposure to bacteria: The plant material is exposed to bacteria that can break down cellulose.
Production of volatile fatty acids: Anaerobic microbes in the rumen ferment cellulose and hemicellulose to produce volatile fatty acids (VFAs). VFAs are the main nutrient source for the ruminant.
Ruminants, like cattle, are cud-chewing animals.
The acid present in the stomach:- a)Protects the stomach lining from harmful substances.
- b)Kills the harmful bacteria that may enter along with the food.
- c)Digests starch into simpler sugars.
- d)Makes the medium alkaline.
Correct answer is option 'B'. Can you explain this answer?
The acid present in the stomach:
a)
Protects the stomach lining from harmful substances.
b)
Kills the harmful bacteria that may enter along with the food.
c)
Digests starch into simpler sugars.
d)
Makes the medium alkaline.
|
|
Amit Kumar answered |
'Hydrochloric acid' is an acid that is secreted in the stomach. It helps to kill the harmful bacteria that may enter the food.
In which part of the human digestive system does most digestion and absorption of nutrients take place?
- a)Stomach
- b)Small intestine
- c)Mouth
- d)Large intestine
Correct answer is option 'B'. Can you explain this answer?
In which part of the human digestive system does most digestion and absorption of nutrients take place?
a)
Stomach
b)
Small intestine
c)
Mouth
d)
Large intestine
|
Eduskill Classes answered |
The digestion of starch begins in the mouth where the enzyme amylase, present in saliva, breaks down starch into simpler sugars.
Longest part of human alimentary canal is- a)Liver
- b)Large intestine
- c)Stomach
- d)Small intestine
Correct answer is option 'D'. Can you explain this answer?
Longest part of human alimentary canal is
a)
Liver
b)
Large intestine
c)
Stomach
d)
Small intestine
|
|
Abhay Menon answered |
Human alimentary canal is about 9 meter long. Small intestine forms the largest part of meet. Most of digestion takes place in small intestine.
Which part of the digestive canal is responsible for the formation of feces?- a)Stomach
- b)Small intestine
- c)Large intestine
- d)Esophagus
Correct answer is option 'C'. Can you explain this answer?
a)
Stomach
b)
Small intestine
c)
Large intestine
d)
Esophagus
|
|
Aurora Institute answered |
The large intestine absorbs water and salts from the undigested food, converting it into solid waste or feces, which is then stored in the rectum until it is excreted.
The stomach is a thick-walled bag that receives food from the food pipe at one end and opens into the ____ at the other.- a)large intestine
- b)small intestine
- c)liver
- d)pancreas
Correct answer is option 'B'. Can you explain this answer?
The stomach is a thick-walled bag that receives food from the food pipe at one end and opens into the ____ at the other.
a)
large intestine
b)
small intestine
c)
liver
d)
pancreas
|
Tutorpedia Coaching answered |
The stomach receives food from the food pipe and opens into the small intestine at the other end for further digestion and absorption of nutrients.
The inner walls of the small intestine have millions of small finger like projections called- a)villi
- b)trachae
- c)appendix
- d)oesophagus
Correct answer is option 'A'. Can you explain this answer?
The inner walls of the small intestine have millions of small finger like projections called
a)
villi
b)
trachae
c)
appendix
d)
oesophagus
|
|
Priyanka Sharma answered |
The interior walls of the small intestine are tightly wrinkled into projections called circular folds that greatly increase their surface area. Microscopic examination of the mucosa reveals that the mucosal cells are organized into finger-like projections known as villi, which further increase the surface area.
Saliva is released from- a)Pinus gland
- b)Thyroid gland
- c)Adrenal gland
- d)Salivary gland
Correct answer is option 'D'. Can you explain this answer?
Saliva is released from
a)
Pinus gland
b)
Thyroid gland
c)
Adrenal gland
d)
Salivary gland
|
Vandana Mukherjee answered |
Saliva is produced in and secreted from salivary glands. The basic secretory units of salivary glands are clusters of cells called an acini. These cells secrete a fluid that contains water, electrolytes, mucus and enzymes, all of which flow out of the acinus into collecting ducts.
Wall of stomach contains- a)Neural glands
- b)Lymph nodes
- c)Gastric glands
- d)Absorptive glands
Correct answer is option 'C'. Can you explain this answer?
Wall of stomach contains
a)
Neural glands
b)
Lymph nodes
c)
Gastric glands
d)
Absorptive glands
|
|
Kavya Rane answered |
Fundic glands found in the fundus and also in the body have another two cell types–gastric chief cells and parietal cells (oxyntic)). The chief cells are found in the basal regions of the gland and release a zymogen – pepsinogen, a precursor to pepsin.
Amoeba obtain the food using finger-like projection called- a)Pseudopodia
- b)Spiracles
- c)Diaphragm
- d)Mouth
Correct answer is option 'A'. Can you explain this answer?
Amoeba obtain the food using finger-like projection called
a)
Pseudopodia
b)
Spiracles
c)
Diaphragm
d)
Mouth
|
|
Pooja Banerjee answered |
Amoeba obtains its food by a process called as endocytosis. It extends finger like projections called as pseudopodia around the food particle through the flexibility of its cell membrane and cytoplasm, and then engulfs the food particle. Once engulfed, it is stored in small vacuoles which contains enzymes to break the food into simpler forms which can be easily taken up by the amoeba.
What is the largest gland in the human body?
- a)Pancreas
- b)Liver
- c)Thyroid
- d)Adrenal
Correct answer is option 'B'. Can you explain this answer?
What is the largest gland in the human body?
a)
Pancreas
b)
Liver
c)
Thyroid
d)
Adrenal
|
|
Mitali sengupta answered |
Liver
The liver is the largest gland in the human body, weighing about 3 pounds in an average adult. It is located in the upper right-hand side of the abdomen, beneath the diaphragm. The liver plays a crucial role in various bodily functions, including digestion, metabolism, detoxification, and storage of nutrients.
Anatomy of the Liver
- The liver is divided into two main lobes, the right lobe, and the left lobe. It is further divided into smaller lobes and segments.
- The liver receives blood from two sources, the hepatic artery and the portal vein. The hepatic artery supplies oxygenated blood, while the portal vein carries nutrient-rich blood from the digestive system.
Functions of the Liver
- Digestion: The liver produces bile, which is essential for the digestion and absorption of fats.
- Metabolism: The liver metabolizes nutrients, drugs, and hormones, and regulates blood glucose levels.
- Detoxification: The liver detoxifies harmful substances, such as alcohol and medications.
- Storage: The liver stores vitamins, minerals, and glycogen for energy.
Importance of the Liver
The liver is a vital organ that performs over 500 functions in the body. It is essential for maintaining overall health and well-being. Any disruption in liver function can lead to serious health problems, such as liver disease, hepatitis, or cirrhosis.
In conclusion, the liver is not only the largest gland in the human body but also one of the most important organs for maintaining health and vitality. It is crucial to take care of the liver through a healthy diet, regular exercise, and avoiding harmful substances to ensure its proper functioning.
The liver is the largest gland in the human body, weighing about 3 pounds in an average adult. It is located in the upper right-hand side of the abdomen, beneath the diaphragm. The liver plays a crucial role in various bodily functions, including digestion, metabolism, detoxification, and storage of nutrients.
Anatomy of the Liver
- The liver is divided into two main lobes, the right lobe, and the left lobe. It is further divided into smaller lobes and segments.
- The liver receives blood from two sources, the hepatic artery and the portal vein. The hepatic artery supplies oxygenated blood, while the portal vein carries nutrient-rich blood from the digestive system.
Functions of the Liver
- Digestion: The liver produces bile, which is essential for the digestion and absorption of fats.
- Metabolism: The liver metabolizes nutrients, drugs, and hormones, and regulates blood glucose levels.
- Detoxification: The liver detoxifies harmful substances, such as alcohol and medications.
- Storage: The liver stores vitamins, minerals, and glycogen for energy.
Importance of the Liver
The liver is a vital organ that performs over 500 functions in the body. It is essential for maintaining overall health and well-being. Any disruption in liver function can lead to serious health problems, such as liver disease, hepatitis, or cirrhosis.
In conclusion, the liver is not only the largest gland in the human body but also one of the most important organs for maintaining health and vitality. It is crucial to take care of the liver through a healthy diet, regular exercise, and avoiding harmful substances to ensure its proper functioning.
Why do we get instant energy from glucose?- a)It is a complex sugar
- b)It requires no digestion
- c)It is stored in the muscles
- d)It is converted into fat
Correct answer is option 'B'. Can you explain this answer?
a)
It is a complex sugar
b)
It requires no digestion
c)
It is stored in the muscles
d)
It is converted into fat
|
Gunjan Lakhani answered |
Glucose provides instant energy because it is a simple sugar that does not require digestion and can be quickly absorbed into the bloodstream, providing immediate energy to cells.
Where is bile stored temporarily before being released into the small intestine?- a)Liver
- b)Pancreas
- c)Gallbladder
- d)Stomach
Correct answer is option 'C'. Can you explain this answer?
a)
Liver
b)
Pancreas
c)
Gallbladder
d)
Stomach
|
|
Rainbow Rise Classes answered |
Bile is stored temporarily in the gallbladder before being released into the small intestine to aid in the digestion and emulsification of fats.
Where does the digestion of starch start in the human body?- a)Stomach
- b)Mouth
- c)Small intestine
- d)Large intestine
Correct answer is option 'B'. Can you explain this answer?
a)
Stomach
b)
Mouth
c)
Small intestine
d)
Large intestine
|
Shabnam Shah answered |
Mouth
Digestion of starch begins in the mouth. When we chew our food, our salivary glands release an enzyme called amylase. Amylase is responsible for breaking down starch molecules into smaller sugars like maltose. This initial breakdown of starch into simpler sugars sets the stage for further digestion in the digestive tract.
Stomach
Once the chewed food mixed with saliva reaches the stomach, the acidic environment of the stomach stops the action of amylase. Starch digestion does not continue in the stomach due to the low pH that denatures the amylase enzyme.
Small Intestine
In the small intestine, the pancreas releases more amylase to further break down the remaining starch into maltose and other simple sugars. The lining of the small intestine also produces enzymes that continue the breakdown of starch into individual glucose molecules, which can then be absorbed into the bloodstream for energy.
Large Intestine
By the time food reaches the large intestine, most of the starch has been broken down into simple sugars. The large intestine's main role is to absorb water and electrolytes from the remaining food particles, but starch digestion is mostly completed in the small intestine.
Digestion of starch begins in the mouth. When we chew our food, our salivary glands release an enzyme called amylase. Amylase is responsible for breaking down starch molecules into smaller sugars like maltose. This initial breakdown of starch into simpler sugars sets the stage for further digestion in the digestive tract.
Stomach
Once the chewed food mixed with saliva reaches the stomach, the acidic environment of the stomach stops the action of amylase. Starch digestion does not continue in the stomach due to the low pH that denatures the amylase enzyme.
Small Intestine
In the small intestine, the pancreas releases more amylase to further break down the remaining starch into maltose and other simple sugars. The lining of the small intestine also produces enzymes that continue the breakdown of starch into individual glucose molecules, which can then be absorbed into the bloodstream for energy.
Large Intestine
By the time food reaches the large intestine, most of the starch has been broken down into simple sugars. The large intestine's main role is to absorb water and electrolytes from the remaining food particles, but starch digestion is mostly completed in the small intestine.
What is the primary organelle in Amoeba responsible for regulating its movement and maintaining its shape?
- a)Cell membrane
- b)Nucleus
- c)Vacuoles
- d)Pseudopodia
Correct answer is option 'D'. Can you explain this answer?
What is the primary organelle in Amoeba responsible for regulating its movement and maintaining its shape?
a)
Cell membrane
b)
Nucleus
c)
Vacuoles
d)
Pseudopodia
|
|
Eduskill Classes answered |
Pseudopodia, also known as false feet, are finger-like projections that Amoeba extends and retracts for movement and capturing food. These structures allow Amoeba to constantly change its shape and position.
What are the two different sets of teeth that humans have?- a)Milk teeth and temporary teeth
- b)First teeth and second teeth
- c)Milk teeth and permanent teeth
- d)Primary teeth and adult teeth
Correct answer is option 'C'. Can you explain this answer?
What are the two different sets of teeth that humans have?
a)
Milk teeth and temporary teeth
b)
First teeth and second teeth
c)
Milk teeth and permanent teeth
d)
Primary teeth and adult teeth
|
Aashna Chopra answered |
Human Teeth:
Human beings have two different sets of teeth throughout their lifetime. These sets are known as milk teeth and permanent teeth.
Milk Teeth:
- Milk teeth, also known as deciduous teeth or baby teeth, are the first set of teeth that humans develop.
- These teeth usually start to appear around 6 months of age and are gradually replaced by permanent teeth starting around the age of 6.
- There are a total of 20 milk teeth, which include 8 incisors, 4 canines, and 8 molars.
Permanent Teeth:
- Permanent teeth are the second set of teeth that replace milk teeth.
- They begin to emerge around the age of 6 and continue to develop until early adulthood.
- There are a total of 32 permanent teeth in adults, which include 8 incisors, 4 canines, 8 premolars, and 12 molars.
- These teeth are meant to last a lifetime, hence the name "permanent teeth."
In conclusion, humans have two sets of teeth - milk teeth and permanent teeth. Milk teeth are the first set that develop in childhood and are replaced by permanent teeth, which are meant to last a lifetime.
ORS stand for- a)Oral Regeneration solution
- b)Oral resolution solution
- c)Oral Rehydration Solution
- d)Open Rejuvenated solution
Correct answer is option 'C'. Can you explain this answer?
ORS stand for
a)
Oral Regeneration solution
b)
Oral resolution solution
c)
Oral Rehydration Solution
d)
Open Rejuvenated solution
|
Subham Iyer answered |
ORS stands for Oral Rehydration Solution
Explanation:
Oral Rehydration Solution (ORS) is a liquid preparation that is used to treat dehydration caused by diarrhea, vomiting, or excessive sweating. It is a simple and effective way to restore lost fluids and electrolytes in the body. ORS contains a mixture of salts, sugar, and water that helps to replace the fluids and minerals that are lost during these conditions.
Components of ORS:
1. Water: The main component of ORS is water, which helps to rehydrate the body and replace the lost fluids.
2. Salts: ORS contains a specific combination of salts, such as sodium chloride (common salt) and potassium chloride, which are essential for maintaining the body's electrolyte balance.
3. Sugar: ORS also includes a small amount of sugar, usually glucose or sucrose, which helps the body to absorb the salts and water more efficiently.
Working of ORS:
When a person suffers from diarrhea or vomiting, the body loses a significant amount of fluids and electrolytes. This can lead to dehydration, which can be life-threatening if not treated promptly. ORS works by replenishing the lost fluids and electrolytes, helping to restore the body's balance and prevent complications.
The salts in ORS help to replace the electrolytes that are lost through diarrhea or vomiting. Sodium and potassium are essential for maintaining the body's fluid balance and nerve function, while glucose helps to enhance the absorption of these electrolytes.
Benefits of ORS:
1. Rehydration: ORS helps to restore lost fluids and electrolytes, preventing dehydration and its associated complications.
2. Easy to administer: ORS is a simple and convenient solution that can be easily prepared and given to both children and adults.
3. Cost-effective: ORS is an affordable option for treating dehydration, especially in resource-limited settings.
4. Widely available: ORS is readily available in most pharmacies, healthcare facilities, and even household settings.
Conclusion:
ORS, which stands for Oral Rehydration Solution, is a liquid preparation used to treat dehydration caused by diarrhea, vomiting, or excessive sweating. It contains a mixture of salts, sugar, and water that helps to replenish lost fluids and electrolytes in the body. ORS is an effective and affordable solution for rehydration and is widely available for use in various settings.
Explanation:
Oral Rehydration Solution (ORS) is a liquid preparation that is used to treat dehydration caused by diarrhea, vomiting, or excessive sweating. It is a simple and effective way to restore lost fluids and electrolytes in the body. ORS contains a mixture of salts, sugar, and water that helps to replace the fluids and minerals that are lost during these conditions.
Components of ORS:
1. Water: The main component of ORS is water, which helps to rehydrate the body and replace the lost fluids.
2. Salts: ORS contains a specific combination of salts, such as sodium chloride (common salt) and potassium chloride, which are essential for maintaining the body's electrolyte balance.
3. Sugar: ORS also includes a small amount of sugar, usually glucose or sucrose, which helps the body to absorb the salts and water more efficiently.
Working of ORS:
When a person suffers from diarrhea or vomiting, the body loses a significant amount of fluids and electrolytes. This can lead to dehydration, which can be life-threatening if not treated promptly. ORS works by replenishing the lost fluids and electrolytes, helping to restore the body's balance and prevent complications.
The salts in ORS help to replace the electrolytes that are lost through diarrhea or vomiting. Sodium and potassium are essential for maintaining the body's fluid balance and nerve function, while glucose helps to enhance the absorption of these electrolytes.
Benefits of ORS:
1. Rehydration: ORS helps to restore lost fluids and electrolytes, preventing dehydration and its associated complications.
2. Easy to administer: ORS is a simple and convenient solution that can be easily prepared and given to both children and adults.
3. Cost-effective: ORS is an affordable option for treating dehydration, especially in resource-limited settings.
4. Widely available: ORS is readily available in most pharmacies, healthcare facilities, and even household settings.
Conclusion:
ORS, which stands for Oral Rehydration Solution, is a liquid preparation used to treat dehydration caused by diarrhea, vomiting, or excessive sweating. It contains a mixture of salts, sugar, and water that helps to replenish lost fluids and electrolytes in the body. ORS is an effective and affordable solution for rehydration and is widely available for use in various settings.
Which of the following are the main steps of nutrition in humans?- a)Ingestion, digestion, absorption, assimilation, egestion
- b)Ingestion, absorption, egestion, digestion, assimilation
- c)Absorption, ingestion, digestion, egestion, assimilation
- d)Digestion, ingestion, absorption, assimilation, egestion
Correct answer is option 'A'. Can you explain this answer?
Which of the following are the main steps of nutrition in humans?
a)
Ingestion, digestion, absorption, assimilation, egestion
b)
Ingestion, absorption, egestion, digestion, assimilation
c)
Absorption, ingestion, digestion, egestion, assimilation
d)
Digestion, ingestion, absorption, assimilation, egestion
|
|
Aarushi kumar answered |
Steps of Nutrition in Humans
Ingestion:
- Ingestion is the process of taking food into the body through the mouth.
- It involves the intake of food and liquids that provide essential nutrients for the body.
Digestion:
- Digestion is the process of breaking down food into smaller molecules that can be absorbed by the body.
- It occurs in the digestive system through the action of enzymes and stomach acids.
- The nutrients are then extracted from the food particles.
Absorption:
- Absorption is the process of taking the digested food molecules into the bloodstream.
- It occurs mainly in the small intestine, where nutrients like carbohydrates, proteins, and fats are absorbed.
- These nutrients are then transported to different parts of the body for energy and growth.
Assimilation:
- Assimilation is the process of using the absorbed nutrients to build new cells and tissues or to provide energy for various metabolic processes.
- The body utilizes the nutrients from food to maintain its functions and repair damaged tissues.
Egestion:
- Egestion is the process of eliminating undigested food and waste products from the body.
- It involves the removal of indigestible materials through the process of defecation.
By following these main steps of nutrition - ingestion, digestion, absorption, assimilation, and egestion, the human body is able to obtain the necessary nutrients for growth, energy, and overall health.
Ingestion:
- Ingestion is the process of taking food into the body through the mouth.
- It involves the intake of food and liquids that provide essential nutrients for the body.
Digestion:
- Digestion is the process of breaking down food into smaller molecules that can be absorbed by the body.
- It occurs in the digestive system through the action of enzymes and stomach acids.
- The nutrients are then extracted from the food particles.
Absorption:
- Absorption is the process of taking the digested food molecules into the bloodstream.
- It occurs mainly in the small intestine, where nutrients like carbohydrates, proteins, and fats are absorbed.
- These nutrients are then transported to different parts of the body for energy and growth.
Assimilation:
- Assimilation is the process of using the absorbed nutrients to build new cells and tissues or to provide energy for various metabolic processes.
- The body utilizes the nutrients from food to maintain its functions and repair damaged tissues.
Egestion:
- Egestion is the process of eliminating undigested food and waste products from the body.
- It involves the removal of indigestible materials through the process of defecation.
By following these main steps of nutrition - ingestion, digestion, absorption, assimilation, and egestion, the human body is able to obtain the necessary nutrients for growth, energy, and overall health.
Practice Quiz or MCQ (Multiple Choice Questions) with solutions are available for Practice, which would help you prepare for chapter Nutrition in Animals, Class 7, Science. You can practice these practice quizzes as per your speed and improvise the topic. Q. Mode of nutrition in animal is- a)Saprophytic
- b)Heterotrophic
- c)Omnivores
- d)Autotrophic
Correct answer is option 'B'. Can you explain this answer?
Practice Quiz or MCQ (Multiple Choice Questions) with solutions are available for Practice, which would help you prepare for chapter Nutrition in Animals, Class 7, Science. You can practice these practice quizzes as per your speed and improvise the topic.
Q. Mode of nutrition in animal is
a)
Saprophytic
b)
Heterotrophic
c)
Omnivores
d)
Autotrophic
|
Shobha dasgupta answered |
Understanding Modes of Nutrition in Animals
In the context of Chapter Nutrition in Animals from Class 7 Science, it's essential to explore the different modes of nutrition employed by various organisms. Among the given options, the correct answer is Heterotrophic nutrition (option B).
What is Heterotrophic Nutrition?
- Heterotrophic nutrition refers to the way animals obtain their food by consuming other living organisms or organic matter.
- Animals cannot produce their own food through photosynthesis like plants; instead, they rely on other organisms for sustenance.
Types of Heterotrophic Nutrition
- Herbivores: Animals that primarily eat plants (e.g., cows, deer).
- Carnivores: Animals that primarily consume other animals (e.g., lions, eagles).
- Omnivores: Animals that eat both plants and animals (e.g., humans, bears).
- Saprophytic: While some organisms like fungi exhibit saprophytic nutrition, animals do not fall into this category.
Why Not Other Options?
- Saprophytic (Option A): This mode of nutrition involves organisms that feed on dead and decaying matter. It does not apply to animals as a whole.
- Omnivores (Option C): While omnivores are a category of heterotrophs, the term "heterotrophic" encompasses all animals, making it a broader and more accurate classification.
- Autotrophic (Option D): Autotrophic organisms, like plants, produce their own food through photosynthesis, which is not applicable to animals.
Conclusion
Thus, the correct answer is Heterotrophic (Option B) as it accurately describes the mode of nutrition prevalent in animals, highlighting their dependence on other organisms for food. Understanding this concept is crucial for grasping the fundamental principles of nutrition in biology.
In the context of Chapter Nutrition in Animals from Class 7 Science, it's essential to explore the different modes of nutrition employed by various organisms. Among the given options, the correct answer is Heterotrophic nutrition (option B).
What is Heterotrophic Nutrition?
- Heterotrophic nutrition refers to the way animals obtain their food by consuming other living organisms or organic matter.
- Animals cannot produce their own food through photosynthesis like plants; instead, they rely on other organisms for sustenance.
Types of Heterotrophic Nutrition
- Herbivores: Animals that primarily eat plants (e.g., cows, deer).
- Carnivores: Animals that primarily consume other animals (e.g., lions, eagles).
- Omnivores: Animals that eat both plants and animals (e.g., humans, bears).
- Saprophytic: While some organisms like fungi exhibit saprophytic nutrition, animals do not fall into this category.
Why Not Other Options?
- Saprophytic (Option A): This mode of nutrition involves organisms that feed on dead and decaying matter. It does not apply to animals as a whole.
- Omnivores (Option C): While omnivores are a category of heterotrophs, the term "heterotrophic" encompasses all animals, making it a broader and more accurate classification.
- Autotrophic (Option D): Autotrophic organisms, like plants, produce their own food through photosynthesis, which is not applicable to animals.
Conclusion
Thus, the correct answer is Heterotrophic (Option B) as it accurately describes the mode of nutrition prevalent in animals, highlighting their dependence on other organisms for food. Understanding this concept is crucial for grasping the fundamental principles of nutrition in biology.
In digestion the unused parts of the food are________.- a)utilised
- b)defecated
- c)converted
- d)None of the above
Correct answer is option 'B'. Can you explain this answer?
In digestion the unused parts of the food are________.
a)
utilised
b)
defecated
c)
converted
d)
None of the above
|
Subset Academy answered |
The unused parts of the food are defecated. Option B is correct
Chapter doubts & questions for Nutrition in Animals - Advance Learner Course: Science Class 6 2025 is part of Class 6 exam preparation. The chapters have been prepared according to the Class 6 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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