NEET 2023 Phase 2 · BiologyCell compositionPrevious Year Question
Match List-I with List-II. List-I: (A) Terpenoides (B) Lectins (C) Alkaloids (D) Toxins List-II: (I) Codeine (II) Diterpenes (III) Ricin (IV) Concanavalin A Choose the correct answer from the options given below:
Answer: (B) (A)-(II), (B)-(IV), (C)-(I), (D)-(III). Answer: (B) (A)-(II), (B)-(IV), (C)-(I), (D)-(III).
- A.(A)-(II), (B)-(III), (C)-(I), (D)-(IV)
- B.(A)-(II), (B)-(IV), (C)-(I), (D)-(III)✓
- C.(A)-(II), (B)-(IV), (C)-(III), (D)-(I)
- D.(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
Correct Answer
(B) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
Solution & Explanation
Answer: (B) (A)-(II), (B)-(IV), (C)-(I), (D)-(III). Solution: From the secondary-metabolite table, terpenoids include diterpenes (A-II), lectins are exemplified by Concanavalin A (B-IV), alkaloids include codeine (C-I), and toxins include ricin (D-III). This unique mapping matches only option (B); the other combinations misplace at least one example. NCERT Reference: Ch 9, p.108, line ~47 — "Alkaloids Morphine, Codeine, etc. Terpenoides Monoterpenes, Diterpenes etc."
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