NEET 2023 Phase 1 · BiologyPrevious Year Question
Which of the following statements are correct? A. Basophils are most abundant cells of the total WBCs. B. Basophils secrete histamine, serotonin and heparin. C. Basophils are involved in inflammatory response. D. Basophils have kidney shaped nucleus. E. Basophils are agranulocytes. Choose the correct answer:
Answer: (C) B and C only. Answer: (c) B and C only Solution: Basophils secrete histamine, serotonin and heparin (B correct) and are involved in inflammatory reactions (C correct).
- A.D and E only
- B.C and E only
- C.B and C only✓
- D.A and B only
Correct Answer
(C) B and C only
Solution & Explanation
Answer: (c) B and C only Solution: Basophils secrete histamine, serotonin and heparin (B correct) and are involved in inflammatory reactions (C correct). They are the least abundant WBCs (0.5-1%), not the most abundant (A wrong); they are granulocytes, not agranulocytes (E wrong); and the kidney-shaped nucleus belongs to monocytes, not basophils (D wrong). So only B and C are correct. NCERT: Ch 15, p.194, line 33 — "Basophils secrete histamine, serotonin, heparin, etc., and are involved in inflammatory reactions."
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