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AFMC Biology Mock Test - 2 - NEET MCQ


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50 Questions MCQ Test AFMC Mock Test Series 2024 - AFMC Biology Mock Test - 2

AFMC Biology Mock Test - 2 for NEET 2024 is part of AFMC Mock Test Series 2024 preparation. The AFMC Biology Mock Test - 2 questions and answers have been prepared according to the NEET exam syllabus.The AFMC Biology Mock Test - 2 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for AFMC Biology Mock Test - 2 below.
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AFMC Biology Mock Test - 2 - Question 1

Largest gland in human body is:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 1

Largest gland in human body is liver and Thyroid is largest endocrine gland.Liver Function Tests: Approaches to Liver Disease -Narayana Health

 

AFMC Biology Mock Test - 2 - Question 2

Lathyrism due to consumption of khesri dal is characterised by:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 2
  • Lathyrism is a neurotoxic disorder caused by eating certain legumes of the genus Lathyrus.
    It is due to the lathyrogen present in them which are basically the derivatives of amino acids.
  • This disease leads to progressive weakness and stiffness, prickling/tingling sensations, and alterations in the collagen cross-links that ultimately lead to alterations in the bone material and pattern and therefore leads to skeletal deformities.
AFMC Biology Mock Test - 2 - Question 3

Secretion of gastric juice is controlled by:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 3

The parasympathetic nervous system, via the vagus nerve, and the hormone gastrin stimulate the parietal cell to produce gastric acid, both directly acting on parietal cells and indirectly, through the stimulation of the secretion of the hormone histamine from enterochromaffin-like cells (ECL).

Control of Gastric Secretions:
gastric secretions

AFMC Biology Mock Test - 2 - Question 4

Glissonian cirrhosis is a disease related to:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 4

Cirrhosis: A degenerative disease of the liver, marked by an excessive formation of tissue and contraction of the organ, usually brought on by chronic alcohol abuse. — cirrhotic.

AFMC Biology Mock Test - 2 - Question 5

Power of regeneration is poor in:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 5

Brain cells (neurones) do not regenerate because centriole is not found in neurones.

AFMC Biology Mock Test - 2 - Question 6

Which part of the mammalian alimentary canal does NOT secrete any enzyme?

Detailed Solution for AFMC Biology Mock Test - 2 - Question 6

The part of alimentary canal which does not secrete any enzyme is Oesophagus.

AFMC Biology Mock Test - 2 - Question 7

Ammonia is formed inside

Detailed Solution for AFMC Biology Mock Test - 2 - Question 7

Ammonia is rapidly removed from the circulation in the liver, converted into a water soluble compound known as urea. Ammonia is toxic to the CNS because it reacts with the α-ketoglutarate to form glutamate.

AFMC Biology Mock Test - 2 - Question 8

The chief contribution of mitosis is in:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 8
  • Mitosis is a process where a single cell divides into two identical daughter cells (cell division).
  • During mitosis one cell divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.

5,814 BEST Mitosis IMAGES, STOCK PHOTOS & VECTORS | Adobe Stock

AFMC Biology Mock Test - 2 - Question 9

Phagocytic cells of liver are called:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 9
  • Kupffer cells, the resident macrophage in the liver, comprise the largest population of resident tissue macrophages in the body.
  • It comprises the major phagocytic activity of what was classically termed the reticular-endothelial system and now more properly called the mononuclear phagocytic system (139).
AFMC Biology Mock Test - 2 - Question 10

The ciliated epithelium in our body may be found in

Detailed Solution for AFMC Biology Mock Test - 2 - Question 10

The ciliated epithelium in trachea, is in fact pseudostratified ciliated epithelium having long ciliated columnar cells and short cuboidal cells.

AFMC Biology Mock Test - 2 - Question 11

The colour of chromoplast can be:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 11

Plastid is an important site for the manufacture and storage of chemical compounds used by the cells of autotrophic organisms.

  • Chromoplast is a plastid that consists of red, yellow and orange coloured pigments. They are usually found in fruits, flowers, roots, and aged leaves which gives distinct colours to these plant parts.
  • The chromoplasts contain a pigment called lycopene, which is present in the form of crystals within the lumina of membrane sacs.

So, the correct answer is 'All of the above'.

AFMC Biology Mock Test - 2 - Question 12

Maximum amount of iodine occurs in:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 12

The iodine-replete healthy adult has about 15–20 mg of iodine, 70%–80% of which is contained in the thyroid.

AFMC Biology Mock Test - 2 - Question 13

Glucagon hormone:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 13

Insulin decrease the blood glucose level and Glucagon increase the blood glucose level hence they have opposite effect to each other.

AFMC Biology Mock Test - 2 - Question 14

Regeneration can occur throughout the human life in:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 14

Throughout your life, your skin will change constantly, for better or worse. In fact, your skin will regenerate itself approximately every 27 days.

AFMC Biology Mock Test - 2 - Question 15

Reticulocytes are:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 15

Reticulocytes are immature red blood cells (RBCs). In the process of erythropoiesis, red blood cell formation, reticulocytes developed and mature in the bone marrow and then circulate for about a day in the bloodstream before developing into mature red blood cells.

AFMC Biology Mock Test - 2 - Question 16

Who coined the term 'Homo sapiens'?

Detailed Solution for AFMC Biology Mock Test - 2 - Question 16

Homo sapiens is the scientific name of human, termed by the father of modern biological classification Carolus Linnaeus in 1758.

AFMC Biology Mock Test - 2 - Question 17

Pureline breeds refer to:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 17

The pure line is true-breeding genotypes:

  • A line that has been rendered homozygous for all genes under consideration in successive generations.
  • A line in which homozygous individuals produce only homozygous offspring like parents.

Thus, pure line breed refers to homozygosity only.

AFMC Biology Mock Test - 2 - Question 18

Gynecomastia is found in:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 18

Klinefelter's Syndrome: XXY
The presence of 2 X Chromosomes causes the appearance of feminine characters in this male.
Example: Gynecomastia

AFMC Biology Mock Test - 2 - Question 19

During which disorder the blood clotting is delayed?

Detailed Solution for AFMC Biology Mock Test - 2 - Question 19

In haemophilia a protien is absent in affected individual which helps in blood clotting due to which simple cut results in nonstop bleeding.

AFMC Biology Mock Test - 2 - Question 20

A couple has 6 children, 5 are girls and 1 is a boy. The percentage of having a girl child next time is:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 20
  • There will be 50% chances because the sex of foetus depends on the male not on female and the male has two types of sex chromosomes 'X and Y'.
  • If X fuses with female gamete than it will produce a girl child and if Y fuses with the female gamete then it will produce a boy child.
AFMC Biology Mock Test - 2 - Question 21

Cell-tissue organisation occurs in:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 21
  • Liver fluke belongs to Platyhelminthes which is having an organ level of organization.
  • Sponges having a cellular level of organization
  • Starfish belongs to echinoderms having an organ system level of organization.
AFMC Biology Mock Test - 2 - Question 22

What is CORRECT about Taenia?

Detailed Solution for AFMC Biology Mock Test - 2 - Question 22

Taenia is bisexual animal and mature proglottides have both male and female reproductive organ.

AFMC Biology Mock Test - 2 - Question 23

An enterocoelomate invertebrate group is:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 23

Echinodermata are exclusively marine organisms.
Example: Sea cucumbers, Sea urchins, Sand dollars, and Brittle stars.

To date, no fresh water or terrestrial echinoderms are known.

AFMC Biology Mock Test - 2 - Question 24

Sound box of birds is called

Detailed Solution for AFMC Biology Mock Test - 2 - Question 24

The syrinx  is the vocal organ of birds. Located at the base of a bird's trachea, it produces sounds without the vocal folds of mammals.

AFMC Biology Mock Test - 2 - Question 25

Body cavity lined by mesoderm is:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 25

Coelomate animals or Coelomata (also known as eucoelomates — "true coelom") have a body cavity called a coelom with a complete lining called peritoneum derived from mesoderm (one of the three primary tissue layers).

Body Cavities:
Untitled Document

AFMC Biology Mock Test - 2 - Question 26

Eutherians are characterised by:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 26
  • Placental mammal, (infraclass Eutheria), any member of the mammalian group characterized by the presence of a placenta, which facilitates the exchange of nutrients and wastes between the blood of the mother and that of the fetus.
  • The placentals include all living mammals except marsupials and monotremes.
AFMC Biology Mock Test - 2 - Question 27

Common bath sponge is:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 27

Euspongia is the scientific name of common bath sponge.

Euspongia:
Bath Sponge (Euspongia) - Phlyum 101

AFMC Biology Mock Test - 2 - Question 28

Mucus helps frog in forming

Detailed Solution for AFMC Biology Mock Test - 2 - Question 28

Mucus helps frog in forming moist skin as skin is its respiratory organ.

AFMC Biology Mock Test - 2 - Question 29

Pearl producing Indian species is:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 29
  • The important species producing good quality of pearl are Pinctada vulgaris (schumachar), Pinctada marigavitifera (Linn), Pinctada chemnitzi (Philippi), Pinctada anamioides (Reeve) and Pinctada alropurpurea (Dunker).
  • All these species are Marine and it is the marine forms which produce the pearl of fine quality.
AFMC Biology Mock Test - 2 - Question 30

Animals devoid of respiratory, excretory and circulatory organs are:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 30

Sponges belong to Porifera and it exhibits a cellular level of organization.
Hence, it is devoid of respiratory, excretory, and circulatory organs.

AFMC Biology Mock Test - 2 - Question 31

Aristotle's lantern occurs in class:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 31
  • Sea urchins or urchins are typically spiny, globular animals, echinoderms in the class Echinoidea.
  • A complex dental apparatus called Aristotle's lantern, which also may be venomous. The teeth of Aristotle's lantern are typically extruded to scrape algae and other food from rocks, and some urchins can excavate hiding places in coral or rock—even in steel.
  • Sea urchins live on the ocean floor, usually on hard surfaces, and use the tube feet or spines to move about.
AFMC Biology Mock Test - 2 - Question 32

Moss protonema can be differentiated from filamentous alga in:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 32
  • It has a height of 3–5 cm, a radial symmetry with differentiation of an axis or stem, leaves or phylloid, and multicellular colorless branched rhizoids with oblique septa.
  • When a moss first grows from the spore, it starts as a germ tube which lengthens and branches into a filamentous complex known as a protonema, which develops into a leafy gametophore, the adult form of a gametophyte in bryophytes.
  • Moss spores germinate to form an algae-like filamentous structure called the protonema.
AFMC Biology Mock Test - 2 - Question 33

A sulphur containing amino acid is

Detailed Solution for AFMC Biology Mock Test - 2 - Question 33

Cysteine and methionine are S containing Amnio acids.

AFMC Biology Mock Test - 2 - Question 34

The species of Pinus seeds of which are edible is/chilgosa comes from:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 34
  • Chilgoza pine is well known for its edible pine nuts, rich in carbohydrates and protein.
  • P. girardiana, also known as chilgoza pine (which literally means "forty nuts"), Noosa or neoza, is a pine native to the northwestern Himalayas in eastern Afghanistan and northwest India, growing at elevations between 1800 and 3350 meters.
AFMC Biology Mock Test - 2 - Question 35

The floating roots are the characteristic features of:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 35
  • The floating roots are swollen spongy and have large aerenchyma. They provide buoyancy to the plant and are also respiratory in function. These are found in Jussiaea, Utricularia.
  • Cuscuta is a total stem parasite. The parasite penetrates into the host through sucking or parasitic or haustorial roots and develops a connection between the conducting systems of two plants.
  • Viscum is a partial stem parasite. The parasite sends a primary haustorium or suckers into the host and obtaining water and minerals from the host.
  • Vanda is epiphytic herb. It contains adventitious aerial roots. The roots are covered by a hygroscopic velamen tissue that absorbs water from the atmosphere.
AFMC Biology Mock Test - 2 - Question 36

Among the following sets of fruits ,those that belong to the same category ,from the point of view of classification are:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 36
  • Mango, almond and coconut are all drupes. Cashew nut is a nut whereas coconut and chestnut are drupes. 
  • Coconut is a drupe whereas orange is a hesperidium berry and tomato is a true berry. Betelnut  is a nut whereas chestnut and coconut are drupes. 

So, the correct answer is Mango, coconut and almond.

AFMC Biology Mock Test - 2 - Question 37

Which of the following is an example of scaly, imbricate bulb?

Detailed Solution for AFMC Biology Mock Test - 2 - Question 37

Scaly or Imbricate bulb: In a scaly bulb, the fleshy scale leaves are arranged loosely overlapping one another. Such bulbs are not covered by any tunics, hence called naked bulbs or scaly bulbs.

AFMC Biology Mock Test - 2 - Question 38

Identify the plant in which fleshy tuberous roots grow in clusters at the base of the stem

Detailed Solution for AFMC Biology Mock Test - 2 - Question 38

The swollen roots or root tubers occur in clusters. In Dahlia they lie at the base of the stem while in Asparagus the fasciculated fleshy roots occur at intervals on the normal roots.

AFMC Biology Mock Test - 2 - Question 39

During impulse transmission, nerve permeability increases for:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 39

Outside the membrane of nerve cell Na+ ions are more, when a nerve impulse is generated, there is a change in the permeability of the membrane Na+ ions flow inside & potassium ions flow outside.

AFMC Biology Mock Test - 2 - Question 40

Which of the following does NOT control the heart beat?

Detailed Solution for AFMC Biology Mock Test - 2 - Question 40

The SNS releases hormones epinephrine and norepinephrine to accelerate the heart rate. And in PNS, parasympathetic innervation of the heart is mediated by the vagus nerve, specifically, the vagus nerve acts to lower the heart rate and PNS also releases a hormone called acetylcholine to slow the heart rate. The glossopharyngeal nerve has no role in this process.

AFMC Biology Mock Test - 2 - Question 41

Which one of the following is responsible for the control of reflex action?

Detailed Solution for AFMC Biology Mock Test - 2 - Question 41
  • Reflex action is an inborn central nervous system activity, not involving consciousness, in which a particular stimulus, by exciting an afferent nerve, produces a stereotyped, immediate response of muscle or gland.
  • It is an involuntary and nearly instantaneous movement in response to a stimulus.
AFMC Biology Mock Test - 2 - Question 42

Excretory product of mammals is:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 42
  • Nitrogenous wastes in the body tend to form toxic ammonia, which must be excreted.
  • Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste.
AFMC Biology Mock Test - 2 - Question 43

Starch is detected in food by its:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 43

Iodine test gives blue colour if starch is present.
Example: Potato

AFMC Biology Mock Test - 2 - Question 44

Systema Naturae was written by

Detailed Solution for AFMC Biology Mock Test - 2 - Question 44

Carl von Linné, or Carl Linnaeus (1707–1788) was a Swedish physician, botanist, and zoologist who created a new system of classification for all living things. His first attempt at classifying plants and animals was published in 1735 as Systema Naturae.

AFMC Biology Mock Test - 2 - Question 45

Natural system of classification differs from artificial system in:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 45

The natural system of classification differs from an artificial system in bringing out similarities and dissimilarities.

  • The natural system of classification takes into account a study of a number of characters among the organisms.
  • It brings out natural similarities and dissimilarities between organisms.
  • It takes into consideration the natural relationships among the organisms.
  • It considers characters that are relatively constant.
AFMC Biology Mock Test - 2 - Question 46

Parthenogenesis is development of

Detailed Solution for AFMC Biology Mock Test - 2 - Question 46

Parthenocarpy is development of fruit without fertilisation whereas parthenogenesis is development of egg without fertilisation!

AFMC Biology Mock Test - 2 - Question 47

Chromosome number in pollen grains is 6. What shall be its number in leaf tip cells?

Detailed Solution for AFMC Biology Mock Test - 2 - Question 47

Pollen grains are haploid (n) and leaf tip cell is diploid (2n) - 2*6=12

AFMC Biology Mock Test - 2 - Question 48

In house fly, pseudotrachea are formed by:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 48
  • Mouthparts of a housefly consist of fleshy elbowed labium at the distal end of the large, sponge-like organs which are known as labella.
  • The labella is a complex structure consisting of many grooves which are known as the pseudotrachea. These are the organs that sop up liquids.
AFMC Biology Mock Test - 2 - Question 49

The system of plant classification proposed by carolus Linnaeus was artificial because:

Detailed Solution for AFMC Biology Mock Test - 2 - Question 49

The system of classification in which one or very few characters are considered as the key feature of classification is called an artificial system.

This system of classification never throws light on the relationship of plants with one another.

Basis of Linnaeus Artificial System

Linnaeus classified all flowering plants under 24 classes on basis of floral character which includes:

  • No. of stamens present in flowers.

  • Insertion of floral parts into the thalamus.

  • Arrangement adhesion & distribution of stamen.

  • Nature of anther & filaments & their arrangement.

AFMC Biology Mock Test - 2 - Question 50

Who is father of zoology?

Detailed Solution for AFMC Biology Mock Test - 2 - Question 50

Greek philosopher and scientist Aristotle (384–322 B.C.E.) is considered the “father of zoology.” His contributions to the field include vast quantities of information about the variety, structure, and behavior of animals; the analysis of the parts of living organisms; and the beginnings of the science of taxonomy.

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