AIIMS Biology Mock Test - 3
60 Questions MCQ Test AIIMS Mock Tests & Previous Year Papers | AIIMS Biology Mock Test - 3
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In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be
In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Smaller the organism higher is the rate of metabolism per gram weight.
Reason(R): The heart rate of a six month old baby is much higher than that of an old person
Read the statements carefully, and mark the correct answer.
Assertion(A): Smaller the organism higher is the rate of metabolism per gram weight.
Reason(R): The heart rate of a six month old baby is much higher than that of an old person
The basal metabolic rate is defined as the energy requirement of the human body at rest reflects the caloric needs of the body.BMR can be determined by total body weight and the amount of muscle mass. BMR is inversely related with the weight or volume of an organism, which means the smaller the organism higher is the basal metabolic rate.
Heart rate of six month old baby is 110 to 112 beats/minute. Though it is higher then normal adult person, but it is lower than the old person.At the age of 60 years a man have maximum heart rate of 160 beats/minute.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): If the main trunk of Banyan tree is removed it is capable to survive.
Reason (R): Prop roots support the tree.
In the following questions, a statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the statements carefully and mark the answer-
Assertion (A): There are several types of chlorophylls.
Reason (R): Chlorophyll is an asymmetrical molecule.
In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Tropical rain forests are disappearing fastly from developing countries such as India.
Reason(R): No value is attached to these forests because these are poor in biodiversity.
Tropical rain forests are disappearing fast from developing countries such as India. Forest lands are converting into agricultural and industrial lands to fulfil the requirements of increasing population. Tropical rain forestsd are rich in biodiversity.
In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Diabetes insipidus is marked by excessive urination and too much thirst of water.
Reason(R): Anti-diuretic hormone (ADH) is secreted by the posterior lobe of pituitary gland.
Anti-diuretic hormone (ADH) or vasopressin is a peptide hormone, synthesized in the hypothalamus and released by the posterior pituitary gland, that stimulates capillary muscles and reduces the flow of urine and increases its concentration. It is released in response to a fall in the water content of blood plasma and lead to an increase in the permeability to water of the distal and collecting tubules of the nephron. Deficiency or hyposecretion of ADH results in diabetes insipidus.
Diabetes insipidus is characterized by micturating dilute urine several times a dday which results in excessive thirst and dehydration.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): The embryo of monocotyledon and dicotyledon are different.
Reason (R): They follow different embryogeny.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Six molecules of CO 2 and twelve molecules of N A D P H + + H + and 18 ATP are used to form one hexose molecule.
Reason (R): Light reaction results in formation of ATP and NADPH 2 .
In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Secreting hypotonic urine is effective in reducing urinary loss of water.
Reason(R): Hypotonic urine is more concentrated and higher in osmotic pressure than the blood.
When there is a threat of excessive water loss from the body of the animal then the urine excreted needs to be hypertonic and not hypotonic because excessive water loss from the body possess the threat of a rise in osmoconcentration of blood. Since hypertonic urine is more concentrated and higher in osmotic pressure than the blood, therefore it helps in reducing the loss of water with urine.
Human urine is hypertonic which is more concentrated than the blood.So an isotonic glomeruler filterate is first filtered into the Bowman's capsules of nephrons in kidneys. The tubules of nephrons then reabsorb a large volume of water from the glomerular filtrate not accompained by the reabsorption of proportionate amounts of solutes. This leaves the urine more concentrated than the blood which is very effective in reducing the urinary loss of water.
In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Monocot stem consists of collateral open vascular bundles.
Reason(R): If cambium is absent such vascular bundles are called closed type.
Monocot stem possess collateral CLOSED vascular bundle. If cambium is present in vascular bundles of dicot is called open bundles.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Decomposers are present at benthom of aquatic ecosystems.
Reason (R): The consumers of lakes are different at different depths of lakes.
In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Plants also have hormones called as phytohormones.
Reason(R): They increase the rate of reactions and thus always accelerate growth and other related changes.
Plant hormones or phytohormones are chemicals that regulate plant growth.
A plant hormone is a chemical substance produced naturally in plants is translocated to another region for regulating one or more physiological reactions when present in low concentration.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Ginger has a prostrate growing rhizome.
Reason (R): Shoot growth is not affected by gravity.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Haemoglobin is said to be a conjugated protein.
Reason (R): It is composed of a protein called heme and a non-protein iron porphyrin complex called globin.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer.
Assertion(A): There is a need to understand the ecological principles.
Reason (R): One studies the interactions between organisms and their environment in ecology.
In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Interferons are a type of antibodies produced by body cells infected by bacteria.
Reason(R): Interferons stimulate inflammation at the site of injury.
Interferons are not antibodies.These are defence proteins that are produced by body cells that are infected by a virus. They travel to nearby cells and prevent the spread of the virus.
Cells that have been infected produce chemical called histamine. This chemical causes the blood capillaries to dilate (get wider) and become more porous. As a result the area swells, gets red, becomes warm, and is painful. This results in more white blood cells coming to the area to fight the infection. If the inflammation happens over the whole body we get a fever. The fever is the body’s way to combat bacteria and viruses. The higher temperature inhibits the pathogen from reproducing.Interferons do not stimulate inflammation at the site of injury.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): Insects visit flower to gather honey.
Reason (R): Attraction of flowers prevents the insects from damaging other parts of the plant.
In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Clones are group of organism of identical genotype, produced by same kind of sexual reproduction and same sexual processes.
Reason(R): These are prepared by a group of cells that descended from many cells or by inbreeding of a completely heterozygous line.
Clone is a group of cells descended from the same single parent cell. In most of the cases, nucleic acid sequences are said to be cloned when they are inserted into vectors such as plasmids and copied within host cells during gene manipulation.
In the following question, a statement of Assertion(A) is given followed by a corresponding statement of Reason(R).
Read the statements carefully, and mark the correct answer.
Assertion(A): Long distance flow of photoassimilates in plants occurs through sieve tubes.
Reason(R): Mature sieve tubes have parietal cytoplasm and perforated sieve plates.
The main function of sieve tube is the transport of food products from green and storage organs of the plant to other organs of the plant. The sieve elements are sieve tubes arranged one above the other and have sieve plates on their end walls. The cytoplasm occur in the form of a thin living layer along the inner side of cellulose wall.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): A plant cell is an osmotic system.
Reason(R): The cell sap is osmotically active solution.
In the following question, a Statement of Assertion (A) is given followed by a corresponding Reason(R) just below it.Read the Statement carefully and mark the correct answer-
Assertion(A): The two cotyledons in seed are embryonic leaves.
Reason (R): The embryo contains radicle and plumule.
The correct path of blood from the heart to the head and back to the heart again is
Which of the following forms is the connecting link between glycolysis and citric acid and B oxidation of fatty acids-
A distinct mechansim, that usually involves a short segment of DNA with remarkable capacity to move from one location in a chromosome to another, is called
Human syndrome with tall structure, mental defects and antisocial behaviour is
Resistance developed in an individual as a result of antigenic stimulus is
Suspension of attenuated pathogen that stimulates antibody formation is
Blood of AB group cannot be given to B group patient because
Depolarization of an axon results from the movement of
The conversion of nitrate to nitrous oxide and nitrogen gas is termed as
Which among the following is an air pollution indicator?
Relation between amino acid and protein is similar to the one found between
During differentiation the spermatids remain associated with
The latest classification of biological kingdoms has been contributed by
Some organism escape detection from enemies by resembling other organisms. The phenomenon is
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