NEET (Zoology MCQs)
Categories: EDUCATION
Q.1. In cockroach the forewings derive from __X__ and the hindwings from __Y__.
Select the option that correctly identifies 'X' and 'Y'.
X Y
(1) Anterior thoracic, mid-thoracic
(2) Mid-thoracic, posterior thoracic
(3) Posterior thoracic, mid-thoracic
(4) Anterior thoracic, posterior thoracic
Ans. (2) Mid-thoracic, posterior thoracic
Q.2. Select the correct match regarding human heart.
(1) Atrium - Ventricle Lamellar - Thin muscular tissue
(2) Atrium - Small upper chamber
(3) Pericardium - Single layered membranous sac
(4) Chordae tendineae - Present in atrium
Ans. (2) Atrium - Small upper chamber
Q.3. A thin flap of connective tissue that joins the two lobes of thyroid gland is called ____________.
(1) Pineal
(2) Corpus callosum
(3) Isthmus
(4) Follicle
Ans. (3) Isthmus
Q.4. Statement I: Skin on our body is the main physical barrier that prevents the entry of micro-organisms.
Statement II: Microbial growth is inhibited by acid in the stomach, saliva in the mouth, tears from the eyes.
(1) Both Statement I and Statement II are correct.
(2) Both Statement I and Statement II are incorrect.
(3) Statement I is correct but Statement II is incorrect.
(4) Statement I is incorrect but Statement II is correct.
Ans. (1) Both Statement I and Statement II are correct.
Q.5. Choose the incorrect statement regarding chemical transformation.
(1) In exothermic reactions, the energy level of the product is lower than that of the substrate.
(2) Formation of enzyme-substrate complex is an essential step.
(3) The intermediate changed structural states between the substrate and the product are stable.
(4) The substrate has to pass through a transition state for an exothermic or endothermic reaction to take place.
Ans. (3) The intermediate changed structural states between the substrate and the product are stable.
Q.6. Among the following, the most recent ancestor of crocodiles is __________.
(1) Therapsids
(2) Sauropsids
(3) Thecodonts
(4) Synapsids
Ans. (3) Thecodonts
Q.7. Pheretima differs from Phycilia in all of the following characteristics except;
(1) Metamerically segmented body.
(2) Presence of nerve cells.
(3) Presence of closed circulatory system.
(4) Lack of metagenesis.
Ans. (2) Presence of nerve cells.
Q.8. What is the primary function of the autonomic nervous system within the peripheral nervous system?
(1) Controlling voluntary movements.
(2) Regulating involuntary body functions.
(3) Transmitting sensory information.
(4) Maintaining cognitive processes.
Ans. (2) Regulating involuntary body functions.
Q.9. Which type of cells in the seminiferous tubule provide nutrition to the developing sperms?
(1) Leydig cells
(2) Interstitial cells
(3) Sertoli cells
(4) Somatic cells
Ans. (3) Sertoli cells
Q.10. Continuous use of which substance causes liver cirrhosis?
(1) Tobacco
(2) Alcohol
(3) Infected needles
(4) Serotonin
Ans. (2) Alcohol