Sample paper · NEET Preparation Zoology

Zoology · Sample Paper 2

NEET-UG pattern — 45 fresh MCQs on the full Class 11 + 12 Zoology syllabus, 4 marks each.

45 questions · 180 marks · 45 minutes

Timed, marked on submit · free with an account

General instructions

This paper has 45 multiple-choice questions, each with one correct answer. All are compulsory.
Section A — Q1 to Q26: Class 11 syllabus. Section B — Q27 to Q45: Class 12 syllabus.
Each correct answer earns 4 marks. In the real NEET a wrong answer costs 1 mark; this practice paper does not deduct marks.
Time: 45 minutes — the share of Zoology in the 180-minute NEET paper.

Section A · Class 11 syllabus

Questions 1–26, 4 marks each.

Question 14 marks
Cnidoblasts (stinging cells) are characteristic of
1. A.sponges
2. B.coelenterates
3. C.flatworms
4. D.annelids
Question 24 marks
Which animal shows metameric segmentation?
1. A.Ascaris
2. B.earthworm
3. C.Taenia
4. D.Hydra
Question 34 marks
A water vascular system is found in
1. A.molluscs
2. B.echinoderms
3. C.arthropods
4. D.chordates
Question 44 marks
Which is an egg-laying mammal?
1. A.kangaroo
2. B.platypus
3. C.bat
4. D.whale
Question 54 marks
Tendons connect
1. A.bone to bone
2. B.muscle to bone
3. C.muscle to muscle
4. D.skin to muscle
Question 64 marks
Which epithelium lines the inner surface of the fallopian tubes?
1. A.squamous
2. B.ciliated
3. C.keratinised
4. D.compound
Question 74 marks
The secondary structure of a protein is stabilised mainly by
1. A.peptide bonds
2. B.hydrogen bonds
3. C.disulphide bonds only
4. D.ionic bonds
Question 84 marks
Which is a polymer of fructose?
1. A.starch
2. B.glycogen
3. C.inulin
4. D.cellulose
Question 94 marks
A non-protein organic cofactor tightly bound to an enzyme is a
1. A.coenzyme
2. B.prosthetic group
3. C.metal ion
4. D.apoenzyme
Question 104 marks
Most CO₂ is transported in the blood as
1. A.dissolved CO₂
2. B.carbaminohaemoglobin
3. C.bicarbonate
4. D.carbonic acid
Question 114 marks
Emphysema is a disorder in which
1. A.alveolar walls are damaged
2. B.bronchi are inflamed only
3. C.the larynx swells
4. D.the diaphragm is paralysed
Question 124 marks
The volume of air remaining in the lungs after forceful expiration is
1. A.tidal volume
2. B.residual volume
3. C.vital capacity
4. D.inspiratory reserve volume
Question 134 marks
Which blood cells are the most abundant leucocytes?
1. A.lymphocytes
2. B.neutrophils
3. C.eosinophils
4. D.basophils
Question 144 marks
The 'lub' sound of the heart is caused by
1. A.closure of semilunar valves
2. B.closure of tricuspid and bicuspid valves
3. C.opening of AV valves
4. D.atrial contraction
Question 154 marks
Erythroblastosis foetalis occurs when
1. A.Rh⁻ mother carries an Rh⁺ foetus (second pregnancy)
2. B.Rh⁺ mother carries an Rh⁻ foetus
3. C.both are Rh⁻
4. D.both are Rh⁺
Question 164 marks
The counter-current mechanism in the kidney involves
1. A.glomerulus and Bowman's capsule
2. B.Henle's loop and vasa recta
3. C.PCT and DCT
4. D.ureter and bladder
Question 174 marks
Renin is secreted by
1. A.podocytes
2. B.juxtaglomerular cells
3. C.collecting duct
4. D.loop of Henle
Question 184 marks
Glycosuria indicates
1. A.kidney stones
2. B.diabetes mellitus
3. C.uraemia
4. D.gout
Question 194 marks
The functional unit of a myofibril is the
1. A.sarcolemma
2. B.sarcomere
3. C.myosin
4. D.actin
Question 204 marks
Calcium ions in muscle contraction bind to
1. A.actin
2. B.myosin
3. C.troponin
4. D.tropomyosin
Question 214 marks
Gout is caused by accumulation of
1. A.calcium
2. B.uric acid crystals
3. C.lactic acid
4. D.urea
Question 224 marks
The myelin sheath around axons of the PNS is formed by
1. A.oligodendrocytes
2. B.Schwann cells
3. C.astrocytes
4. D.microglia
Question 234 marks
The part of the brain that controls body temperature, hunger and thirst is the
1. A.cerebellum
2. B.hypothalamus
3. C.medulla
4. D.pons
Question 244 marks
Which hormone is called the 'fight or flight' hormone?
1. A.insulin
2. B.thyroxine
3. C.adrenaline
4. D.melatonin
Question 254 marks
Deficiency of growth hormone in childhood causes
1. A.gigantism
2. B.dwarfism (pituitary)
3. C.cretinism
4. D.acromegaly
Question 264 marks
Thymosins are secreted by the thymus and help in
1. A.digestion
2. B.differentiation of T-lymphocytes
3. C.regulating blood sugar
4. D.calcium balance

Section B · Class 12 syllabus

Questions 27–45, 4 marks each.

Question 274 marks
Spermiogenesis is the transformation of
1. A.spermatogonia into spermatocytes
2. B.spermatids into sperms
3. C.primary into secondary spermatocytes
4. D.sperms into semen
Question 284 marks
The acrosome of a sperm is formed from the
1. A.mitochondria
2. B.Golgi apparatus
3. C.nucleus
4. D.centriole
Question 294 marks
Fertilisation in humans normally occurs in the
1. A.uterus
2. B.ampullary region of the fallopian tube
3. C.cervix
4. D.ovary
Question 304 marks
The hormone responsible for milk ejection is
1. A.prolactin
2. B.oxytocin
3. C.progesterone
4. D.relaxin
Question 314 marks
Which is a surgical method of contraception in males?
1. A.tubectomy
2. B.vasectomy
3. C.IUD
4. D.pill
Question 324 marks
Saheli, an oral contraceptive pill, is
1. A.steroidal and taken daily
2. B.non-steroidal and taken once a week
3. C.an IUD
4. D.an injection
Question 334 marks
The theory of natural selection was proposed by
1. A.Lamarck
2. B.Darwin and Wallace
3. C.de Vries
4. D.Oparin
Question 344 marks
Industrial melanism in peppered moths is an example of
1. A.genetic drift
2. B.natural selection
3. C.mutation
4. D.artificial selection
Question 354 marks
Homo erectus had a brain capacity of about
1. A.650–800 cc
2. B.900 cc
3. C.1400 cc
4. D.450 cc
Question 364 marks
The causative agent of typhoid is
1. A.Salmonella typhi
2. B.Haemophilus influenzae
3. C.Plasmodium vivax
4. D.Entamoeba histolytica
Question 374 marks
Which cells produce antibodies?
1. A.T-lymphocytes
2. B.B-lymphocytes (plasma cells)
3. C.macrophages
4. D.neutrophils
Question 384 marks
The vaccine for hepatitis B is produced using
1. A.killed bacteria
2. B.recombinant DNA technology in yeast
3. C.live virus
4. D.antibodies
Question 394 marks
Cocaine is obtained from
1. A.Papaver somniferum
2. B.Erythroxylum coca
3. C.Cannabis sativa
4. D.Atropa belladonna
Question 404 marks
The first restriction endonuclease isolated was
1. A.EcoRI
2. B.Hind II
3. C.BamHI
4. D.Taq
Question 414 marks
The 'ori' in a cloning vector is
1. A.the selectable marker
2. B.the origin of replication
3. C.the restriction site
4. D.the promoter
Question 424 marks
Agrobacterium tumefaciens is used to transfer genes into
1. A.animal cells
2. B.dicot plant cells
3. C.bacteria
4. D.fungi
Question 434 marks
Bt cotton is resistant to
1. A.viruses
2. B.bollworms
3. C.fungi
4. D.drought
Question 444 marks
The first transgenic cow, Rosie, produced milk enriched with
1. A.insulin
2. B.human α-lactalbumin
3. C.growth hormone
4. D.vitamin A
Question 454 marks
ELISA is based on the principle of
1. A.DNA hybridisation
2. B.antigen–antibody interaction
3. C.PCR
4. D.gel electrophoresis

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