Match List-I with List-II: List I (a) Cristae (b) Thylakoid (c) Centromere (d) Cisternae List II (i) Primary constriction in chromosome (ii) Disc-shaped sacs in Golgi apparatus (iii) Infoldings in mitochondria (iv) Flattened membranous sacs in stroma of plastids Choose the correct answer from the options given below:
Answer: (A) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii). Answer: (A) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii) Solution: Cristae are the infoldings of the inner mitochondrial membrane — (iii).
- A.(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)✓
- B.(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
- C.(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
- D.(a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)
Correct Answer
(A) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
Solution & Explanation
Answer: (A) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii) Solution: Cristae are the infoldings of the inner mitochondrial membrane — (iii). Thylakoids are the flattened membranous sacs present in the stroma of plastids — (iv). The centromere is the primary constriction of a chromosome — (i). Cisternae are the disc-shaped sacs of the Golgi apparatus — (ii). This matches option (a). NCERT Reference: Ch 8, p.97, lines 8–9: "The inner membrane forms a number of infoldings called the cristae (sing.: crista) towards the matrix"; and p.98, lines 16–18: "A number of organised flattened membranous sacs called the thylakoids, are present in the stroma".