Zoology MCQs for NEET — Practice Questions with Answers

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NEET 2024

The following are the statements about non-chordates:

A. Pharynx is perforated by gill slits. B. Notochord is absent. C. Central nervous system is dorsal. D. Heart is dorsal if present. E. Post anal tail is absent.

Choose the most appropriate answer from the options given below:

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Explanation

Non-chordates lack gill slits (A wrong) and have a ventral CNS (C wrong). B, D and E are correct.

NEET 2024

Match List I with List II:

List I List II
A. Unicellular glandular epithelium I. Salivary glands
B. Compound epithelium II. Pancreas
C. Multicellular glandular epithelium III. Goblet cells of alimentary canal
D. Endocrine glandular epithelium IV. Moist surface of buccal cavity

Choose the correct answer from the options given below:

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Explanation

Goblet cells (unicellular gland), buccal cavity (compound epithelium), salivary glands (multicellular exocrine), pancreas (endocrine).

NEET 2024

Match List I with List II:

List I List II
A. P wave I. Heart muscles are electrically silent.
B. QRS complex II. Depolarisation of ventricles.
C. T wave III. Depolarisation of atria.
D. T-P gap IV. Repolarisation of ventricles.

Choose the correct answer from the options given below:

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Explanation

P — atrial depolarisation; QRS — ventricular depolarisation; T — ventricular repolarisation; T-P gap — electrically silent diastole.

NEET 2024

Match List I with List II:

List I List II
A. Exophthalmic goiter I. Excess secretion of cortisol, moon face & hyperglycemia
B. Acromegaly II. Hypo-secretion of thyroid hormone and stunted growth
C. Cushing's syndrome III. Hyper secretion of thyroid hormone & protruding eye balls
D. Cretinism IV. Excessive secretion of growth hormone

Choose the correct answer from the options given below:

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Explanation

Exophthalmic goiter — hyperthyroidism (Graves); Acromegaly — GH excess in adults; Cushing's — cortisol excess; Cretinism — congenital hypothyroidism.

NEET 2024

Match List I with List II:

List I List II
A. Mesozoic Era I. Lower invertebrates
B. Proterozoic Era II. Fish & Amphibia
C. Cenozoic Era III. Birds & Reptiles
D. Paleozoic Era IV. Mammals

Choose the correct answer from the options given below:

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Explanation

Mesozoic — birds & reptiles; Proterozoic — lower invertebrates; Cenozoic — mammals; Paleozoic — fish & amphibia.

NEET 2024

Match List I with List II related to digestive system of cockroach:

List I List II
A. The structures used for storing of food. I. Gizzard
B. Ring of 6-8 blind tubules at junction of foregut and midgut. II. Gastric Caeca
C. Ring of 100-150 yellow coloured thin filaments at junction of midgut and hindgut. III. Malpighian tubules
D. The structures used for grinding the food. IV. Crop

Choose the correct answer from the options given below:

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Explanation

Crop — food storage; gastric caeca — foregut/midgut junction; Malpighian tubules — midgut/hindgut junction; gizzard — grinding food.

NEET 2024

Given below are two statements:

Statement I: Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.

Statement II: Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes.

In the light of the above statements, choose the most appropriate answer from the options given below:

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Explanation

Both statements are reproduced from NCERT class XII (immunology chapter).

NEET 2024

Match List I with List II:

List I List II
A. RNA polymerase III I. snRNPs
B. Termination of transcription II. Promoter
C. Splicing of Exons III. Rho factor
D. TATA box IV. snRNAs, tRNA

Choose the correct answer from the options given below:

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Explanation

RNA pol III makes tRNA, 5S rRNA, snRNAs; Rho terminates prokaryotic transcription; snRNPs splice introns; TATA is in eukaryotic promoter.

NEET 2024

Choose the correct statement given below regarding juxta medullary nephron.

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Explanation

Juxtamedullary nephrons have long loops of Henle that extend deep into the medulla — the basis of the counter-current mechanism.

NEET 2024

Given below are two statements:

Statement I: Mitochondria and chloroplasts are both double membrane bound organelles.

Statement II: Inner membrane of mitochondria is relatively less permeable, as compared to chloroplast.

In the light of the above statements, choose the most appropriate answer from the options given below:

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Explanation

Both statements are taken directly from NCERT (cell-organelles chapter).

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