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Sample AFMC Biology Mock Test


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Sample AFMC Biology Mock Test for NEET 2023 is part of AFMC Mock Test Series preparation. The Sample AFMC Biology Mock Test questions and answers have been prepared according to the NEET exam syllabus.The Sample AFMC Biology Mock Test MCQs are made for NEET 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Sample AFMC Biology Mock Test below.
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Sample AFMC Biology Mock Test - Question 1

Which of the following belongs to the class of pepsin and trypsin?

Detailed Solution for Sample AFMC Biology Mock Test - Question 1

Pepsin, rennin, and trypsin are digestive enzymes. 

Pepsin and renin are enzymes secreted by the gastric pits in the stomach. They are the active forms of pepsinogen and prorenin respectively, which activate when they come into contact with the hydrochloric acid in the stomach. 

Sample AFMC Biology Mock Test - Question 2

Glycogen is stored in:

Detailed Solution for Sample AFMC Biology Mock Test - Question 2

Glycogen is mainly stored in the liver and the muscles and provides the body with a readily available source of energy if blood glucose levels decrease.

Sample AFMC Biology Mock Test - Question 3

The duct of gall bladder in rabbit is known as:

Detailed Solution for Sample AFMC Biology Mock Test - Question 3

The cystic duct connects the top of the gallbladder’s neck to the common hepatic duct.
It then joins the common bile duct, which meets the pancreatic duct before it empties into the duodenum.

Illustration of Gallbladder Network:

Sample AFMC Biology Mock Test - Question 4

Pepsin is secreted by:

Detailed Solution for Sample AFMC Biology Mock Test - Question 4

The chief cells in the stomach secrete pepsinogen which activates to form pepsin. Pepsinogen is converted to pepsin under the effect of gastric juices and hydrochloric acid.

Pepsin is secreted by the Zymogen cells of the stomach.

Sample AFMC Biology Mock Test - Question 5

A person has blood group A. It has:

Detailed Solution for Sample AFMC Biology Mock Test - Question 5
  • People with type A blood have antigen A on the surface of their RBCs, while people with type B blood have the B antigen. Individuals with type AB blood have both A and B antigens, whereas people with type O blood have no antigens present (there is no antigen O).
  • The antibody that reacts against antigen A is called anti-A and is found in the plasma of people who do not possess antigen A on their own RBCs – that is, people with type O or type B blood.
  • The antibody that reacts against antigen B is called anti-B and is present in those who do not possess antigen B in their RBCs – people with type O or type A blood.
Sample AFMC Biology Mock Test - Question 6

Variations appear during meiosis due to:

Detailed Solution for Sample AFMC Biology Mock Test - Question 6

The appearance of new characters or traits in the progeny, compared with parents are called Variations.
These are due to the Independent assortment and Crossing over.

Independent assortment: When a cross is made between two individuals different from each other in two or more characters, then the inheritance of one character is independent of the inheritance of another character. It is called Law of independent assortment.

Crossing over: Exchange of chromatid segments between the non-sister chromatids of a bivalent is called crossing over.

Sample AFMC Biology Mock Test - Question 7

Which is mismatched?

Detailed Solution for Sample AFMC Biology Mock Test - Question 7

Beriberi is caused by the deficiency of vitamin- B1 (thiamine).

Vitamin K is essential for blood clotting and deficiency of it causes hemorrhage.

Sample AFMC Biology Mock Test - Question 8

Vitamin B2 is related with

Detailed Solution for Sample AFMC Biology Mock Test - Question 8

Riboflavin (Vitamin B2) is the precursor of two coenzymes known as flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD).
Both are essential for tissue respiration and the generation of energy from the metabolism of carbohydrates, amino acids, and fats.

Sample AFMC Biology Mock Test - Question 9

Which of the following cytoplasmic granules contain histamine?

Detailed Solution for Sample AFMC Biology Mock Test - Question 9

Basophils are circulating granulocytes that respond to allergic stimuli by migrating and accumulating at sites of allergic inflammation.

They contain cytoplasmic granules with similar histamine levels per cell as mast cells.

Sample AFMC Biology Mock Test - Question 10

Which of the following cells are phagocytic in nature ?

Detailed Solution for Sample AFMC Biology Mock Test - Question 10

Among the White blood cells (WBCs) four cells have the phagocytic ability: Neutrophils, Monocytes, Eosinophils, and Basophils.

  • When monocytes leave the blood and enter tissue spaces they grow and modify to form macrophages that still have the phagocytic ability.
  • The basophils and the eosinophils have very little phagocytic ability when compared to the phagocytic ability of neutrophils and monocytes.
Sample AFMC Biology Mock Test - Question 11

Letter S in the structural unit of ribosome denotes:

Detailed Solution for Sample AFMC Biology Mock Test - Question 11

Letter S in structural unit of ribosome refers to Svedberg unit which is a non-metric unit for sedimentation rate.
The sedimentation rate for a particle depends on its density, shape, and mass which collectively decides how fast the particle 'settles'.
The higher value of S means molecules will settle faster than lower S value molecules. 

Sample AFMC Biology Mock Test - Question 12

Secondary sexual characters in males develop under the influence of:

Detailed Solution for Sample AFMC Biology Mock Test - Question 12

Testosterone is responsible for the development of secondary sex characteristics, features that stimulate male development (including characteristics that are not part of the reproductive system, such as facial hair growth and voice change).

Sample AFMC Biology Mock Test - Question 13

Heart beats originate from:

Detailed Solution for Sample AFMC Biology Mock Test - Question 13

The heartbeat originates from the sino-atrial node found in the upper part of the right auricle. It is a specialized type of cell, which generates the impulses required to start the first heartbeat.

Hence, it is known as the natural pacemaker of the heart

Sample AFMC Biology Mock Test - Question 14

General metabolic rate in cells is controlled by:

Detailed Solution for Sample AFMC Biology Mock Test - Question 14

Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland.

Thyroid hormones play vital roles in regulating the body’s metabolic rate, heart, and digestive functions, muscle control, brain development, and maintenance of bones.

Sample AFMC Biology Mock Test - Question 15

Prothrombin required for blood clotting is produced in:

Detailed Solution for Sample AFMC Biology Mock Test - Question 15

Prothrombin is a protein made by the liver. Prothrombin helps blood to make normal clots.

The "prothrombin time" is one way of measuring how long it takes blood to form a clot, and it is measured in seconds (such as 13.2 seconds)

Sample AFMC Biology Mock Test - Question 16

Sand fly acts as a vector of which disease:

Detailed Solution for Sample AFMC Biology Mock Test - Question 16

Kala-azar is caused by bites from female phlebotomine sandflies – the vector (or transmitter) of the leishmania parasite.

The sand flies feed on animals and humans for blood, which they need for developing their eggs.
If blood containing leishmania parasites is drawn from an animal or human, the next person to receive a bite will then become infected and develop leishmaniasis.

Sample AFMC Biology Mock Test - Question 17

Preserving germplasm in a frozen state is:

Detailed Solution for Sample AFMC Biology Mock Test - Question 17

Cryopreservation: Cryopreservation [preservation in the frozen state (cryo means extreme cold, derived from Latin word kruos = ‘frost’)] is based on the reduction and subsequent arrest of metabolic functions of biological material by the imposition of ultra-low temperature.

Sample AFMC Biology Mock Test - Question 18

In man, the disease cholera is caused by:

Detailed Solution for Sample AFMC Biology Mock Test - Question 18

Cholera is caused by bacteria called Vibrio cholera. The disease deadly effects are the result of a strong toxin known as CTX that is produced by these bacteria in your small intestine

Sample AFMC Biology Mock Test - Question 19

Which one of the following is associated with sex-linked inheritance?

Detailed Solution for Sample AFMC Biology Mock Test - Question 19

The two genes that produce red and green light-sensitive proteins are located on the X chromosome. Mutations in these genes can cause color blindness.
Color blindness is a common inherited sex-linked disorder that affects a person's ability to see or recognize certain colors. It affects males much more often than females.

Sample AFMC Biology Mock Test - Question 20

Heroin is got from plant of family:

Detailed Solution for Sample AFMC Biology Mock Test - Question 20
  • Heroin is a semisynthetic opiate. Opiates are derived from opium which is dried latex of unripe capsular fruits of the poppy plant (Papaver somniferum belonging to family Papaveraceae).
  • Opiates have analgesic, narcotic and sedative effects. Heroin is formed from the acetylation of morphine (a natural opiate). It is also known as H-smack or Brown sugar.
  • It is a white and odorless crystalline compound having a bitter taste. It is three times more potent than morphine.
Sample AFMC Biology Mock Test - Question 21

The growing more and more of plants is called:

Detailed Solution for Sample AFMC Biology Mock Test - Question 21

Afforestation is the establishment of a forest or stand of trees (forestation) in an area where there was no previous tree cover.

Many government and non-governmental organizations directly engage in programs of afforestation to create forests, increase carbon capture and carbon sequestration, and help to anthropogenically improve biodiversity. 

Sample AFMC Biology Mock Test - Question 22

The coelom is the cavity between the alimentary canal and body wall enclosed by:

Detailed Solution for Sample AFMC Biology Mock Test - Question 22

By definition, a true coelom is a coelom lined by mesoderm on both sides, because true coelom is produced either by splitting in the mesoderm or by fusion of mesodermally lined pouches.

Sample AFMC Biology Mock Test - Question 23

Brunner’s gland is present in:

Detailed Solution for Sample AFMC Biology Mock Test - Question 23

Brunner's glands (or duodenal glands) are compound tubular submucosal glands found in that portion of the duodenum which is above the hepatopancreatic sphincter (a.k.a. sphincter of Oddi).

Sample AFMC Biology Mock Test - Question 24

Marine poisonous snake is characterised by:

Detailed Solution for Sample AFMC Biology Mock Test - Question 24
  • Sea snakes, venomous elapid snakes that inhabit marine environments, are the most abundant and widely dispersed group of poisonous reptiles in the world. 
  • Sea snakes are characterized by laterally compressed bodies and vertically flattened tails and nostrils with valve-like flaps, giving them an eel-like appearance.
Sample AFMC Biology Mock Test - Question 25

Alcopar drug is useful for:

Detailed Solution for Sample AFMC Biology Mock Test - Question 25

Ascariasis can be treated by antihelminthic drugs such as Alcopar, Antipar, santonin, chenopodium oil and Tetrachloroethylene etc.

Sample AFMC Biology Mock Test - Question 26

Nektons are:

Detailed Solution for Sample AFMC Biology Mock Test - Question 26

Nekton or necton refers to the aggregate of actively swimming aquatic organisms in a body of water.

The term was proposed by German biologist Ernst Haeckel to differentiate between the active swimmers in a body of water, and the passive organisms that were carried along by the current, the plankton.

Sample AFMC Biology Mock Test - Question 27

The most poisonous snake is:

Detailed Solution for Sample AFMC Biology Mock Test - Question 27
  •  Krait venom is extremely neurotoxic and induces muscle paralysis, its bite is lethal to man. There are 12 species and 5 sub-species of Krait Snakes, Some of them are the common krait, banded krait, and Indian Krait.
  • The Bungarus, commonly referred to as Kraits is the most dangerous venomous snake of India and one of the deadliest snakes in the world. The maximum number of deaths of common krait per bite is 60, It can be seen in the deep jungles of India.
Sample AFMC Biology Mock Test - Question 28

Trochophore larva occurs in:

Detailed Solution for Sample AFMC Biology Mock Test - Question 28

Trochophore larva is a small, translucent, free-swimming larva characteristic of marine annelids and most groups of mollusks. They are spherical or pear-shaped and are girdled by a ring of cilia the prototroch, that enables them to swim.

Hence, option D is correct.

Sample AFMC Biology Mock Test - Question 29

The glands present in the skin of frog are:

Detailed Solution for Sample AFMC Biology Mock Test - Question 29

The frog’s skin surface has mucous glands which make it moist and through its moist skin it respires most of the time. So, it possesses mucous glands but not sweat glands and sebaceous glands. They also possess poisonous glands to protect themselves from predators

Sample AFMC Biology Mock Test - Question 30

Name the animal having both setae and nephridia:

Detailed Solution for Sample AFMC Biology Mock Test - Question 30

Nephridia and setae are found in Annelids.

Option A: Sea Urchin is an echinoderm animal.
Option B: Sea Mouse is an Annelida animal.
Option C: Sea Anemone belong to phyla Cnidaria.
Option D: Sea Pen belongs to phyla Cnidaria.

Hence, option B is correct.

Sample AFMC Biology Mock Test - Question 31

The most common mode of reproduction in Spirogyra is:

Detailed Solution for Sample AFMC Biology Mock Test - Question 31

Spirogyra species can reproduce both sexually and asexually.

  • Asexual, or vegetative, reproduction: occurs by simple fragmentation of the filaments.
  • Sexual reproduction: occurs by a process known as conjugation, in which cells of two filaments lying side by side are joined by outgrowths called conjugation tubes.
Sample AFMC Biology Mock Test - Question 32

A character common amongst centipede, spider and cockroach is:

Detailed Solution for Sample AFMC Biology Mock Test - Question 32

Arthropods are joint-legged animals.
Some prominent ones include:
Insects, spiders, ants, cockroaches, bees, crabs, shrimps, millipedes, centipedes, etc.

Sample AFMC Biology Mock Test - Question 33

Gymnosperms do not bear fruits because they:

Detailed Solution for Sample AFMC Biology Mock Test - Question 33
  • Gymnosperms, for example. Cycas, Pinus, Cedrus, etc, bear reproductive structures in the form of cones.
  • The cones that bear female reproductive structures are called female cones. Each female cone contains spirally arranged megasporophylls, that have ovules directly attached to them,  that is, ovules not enclosed in the ovary or are naked.
  • After fertilization, the ovule forms the seed and the ovary forms the fruit. Since in gymnosperms ovary is absent fruits are not formed.

Difference between Angiosperm seeds v/s Gymnosperm seeds:
What are the reasons that Gymnosperms produce neither flower nor fruit? -  Quora

Sample AFMC Biology Mock Test - Question 34

Which of the following is a micro-nutrient or a trace element:

Detailed Solution for Sample AFMC Biology Mock Test - Question 34

Plants require this mineral (Zn) only in traces and its higher concentrations are highly toxic.

Sample AFMC Biology Mock Test - Question 35

The largest-sized flower in the world is produced by a plant that is a:

Detailed Solution for Sample AFMC Biology Mock Test - Question 35

The largest-sized flower in the world is Rafflesia Arnoldii which is found in Indonesia. And it is a parasitic plant that has no roots or leaves. Bcoz of that reason they use their haustoria that use to suck nutrients from the roots of other plants. So they are known as total root parasites.

Image of Rafflesia Arnoldi:

Sample AFMC Biology Mock Test - Question 36

Tyloses are:

Detailed Solution for Sample AFMC Biology Mock Test - Question 36

Tyloses are outgrowths on parenchyma cells of xylem vessels of secondary heartwood. When the plant is stressed by drought or infection, tyloses will fall from the sides of the cells and "dam" up the vascular tissue to prevent further damage to the plant.

Sample AFMC Biology Mock Test - Question 37

In which of the following plants the seeds are beset with tiger's claw:

Detailed Solution for Sample AFMC Biology Mock Test - Question 37

Martynia is a monotypic genus in the Martyniaceae family consisting of a single species, Martynia annua L., which is commonly known as cat's claw, tiger's claw, or iceplant.

Sample AFMC Biology Mock Test - Question 38

Arachnoid:

Detailed Solution for Sample AFMC Biology Mock Test - Question 38

In humans, the membrane that covers the brain (and a majority of the spinal cord) is called the meninges. 

It is a fibrous membrane of tissue composed of three layers:
(i) the dura mater
(ii) arachnoid mater
(iii) pia mater.

Sample AFMC Biology Mock Test - Question 39

Identify the correctly matched pair:

Detailed Solution for Sample AFMC Biology Mock Test - Question 39
  • Chrysanthemum is propagated vegetatively either through root suckers or terminal cuttings.
  • Suckers arise from the underground stem and these are separated and planted in prepared nursery beds during January for stock plants.
Sample AFMC Biology Mock Test - Question 40

The bony labyrinth is filled with:

Detailed Solution for Sample AFMC Biology Mock Test - Question 40
  • The bony labyrinth is the cavity of the inner ear. It consists of the central vestibule, the semicircular canals, and the cochlea.
  • Inside the bony labyrinth lies a complicated membranous sac called the membranous labyrinth.
  • The small space between the wall of the bony labyrinth and the wall of the membranous labyrinth is filled with a fluid called perilymph.
  • The space within the membranous labyrinth is filled with endolymph.
Sample AFMC Biology Mock Test - Question 41

Dorsal root ganglion is:

Detailed Solution for Sample AFMC Biology Mock Test - Question 41

A dorsal root ganglion is also known as a posterior root ganglion, is a cluster of neurons (a ganglion) in a dorsal root of a spinal nerve.

The cell bodies of sensory neurons known as first-order neurons are located in the dorsal root ganglia.

Sample AFMC Biology Mock Test - Question 42

What will happen if one kidney is removed from the body of a human being?

Detailed Solution for Sample AFMC Biology Mock Test - Question 42

Humans have a pair of kidneys that filter our blood & removes the poisonous substance from the blood.
So, in that case, when one kidney is removed from the body, another kidney will work and the person can survive and remain normal.

Sample AFMC Biology Mock Test - Question 43

Which one results in energy wastage:

Detailed Solution for Sample AFMC Biology Mock Test - Question 43
  • Photorespiration imposes costs on plant energy metabolism.
  • The oxygenase reaction of RUBISCO does not result in energy or carbon gain for the plant. The ribulose-1,5-bisphosphate molecule for this reaction is therefore “wasted”. 
Sample AFMC Biology Mock Test - Question 44

True species are:

Detailed Solution for Sample AFMC Biology Mock Test - Question 44

Reproductive isolation term given by Ernest Mayer. This collection is evolutionary mechenism and depend on behavior and physiological process. They prevent members of different species from producing progany or ensure that any offspring are sterile.

Sample AFMC Biology Mock Test - Question 45

An attribute found in plants but NOT in animals is:

Detailed Solution for Sample AFMC Biology Mock Test - Question 45

A few animals have evolved to supplement their energy needs by temporarily harboring chloroplasts, having ingested them through grazing on algae.
Autotrophy does not provide enough energy to fuel the activities of animals.

Sample AFMC Biology Mock Test - Question 46

A clone is a group of individuals obtained through:

Detailed Solution for Sample AFMC Biology Mock Test - Question 46
  • A clone is a group of the organism produced from a single parent through asexual reproduction or progeny of a single plant obtained by asexual reproduction while in other processes like hybridization, cross-pollination, and self-pollination mixing of two gametes is taking place.
  • Micropropagation is the process of the multiplication of somatic cells artificially. During this process, the same type of cells (morphologically and genetically) are formed. such groups of cells are called clones. 
Sample AFMC Biology Mock Test - Question 47

In anatropous ovule, micropyle lies:

Detailed Solution for Sample AFMC Biology Mock Test - Question 47
  • Anatropous ovules are the most common type of ovules, which occur in more than 80 percent of angiosperm families.
  • The body of the ovule is rotated 180° and the micropyle reaches the funiculus.
  • In the straight line, Chalaza and micropyle lie, but hilum is the micropyle at 90°.
    Thus, the micropyle is similar to the funiculus.
  • There is also a ridge in the ovule, as the body of the ovule is fused with the funiculus. In this case, during development, the ovules become completely inverted so that the micropyle lies close to the hilum.
  • The hilum is a scar that marks the point where the funicle connects the seed to the fruit wall.

Hence,option A is correct.

Sample AFMC Biology Mock Test - Question 48

An alkaloid Atropine uses for dilation of pupil is obtained from:

Detailed Solution for Sample AFMC Biology Mock Test - Question 48

Atropine is a non-selective muscarinic antagonist that is mainly used as an adjunct for anesthesia.

Belladonna is a poisonous plant and belladonna intoxication from accidental ingestion may result in a severe anticholinergic syndrome, which is associated with both central and peripheral manifestation.

Sample AFMC Biology Mock Test - Question 49

Adam's Apple represents:

Detailed Solution for Sample AFMC Biology Mock Test - Question 49

Adam's Apple represents thyroid cartilage of larynx which helps to protect the frontal part of the larynx.

Sample AFMC Biology Mock Test - Question 50

Theory of spontaneous generation was given by:

Detailed Solution for Sample AFMC Biology Mock Test - Question 50

The Greek philosopher Aristotle (384–322 BC) was one of the earliest recorded scholars to articulate the theory of spontaneous generation, the notion that life can arise from nonliving matter.

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