Question: 121. Match List-I with List-II.
| List-I | List-II |
|---|---|
| A. Centromere | I. Mitochondrion |
| B. Cilium | II. Cell division |
| C. Cristae | III. Cell movement |
| D. Cell membrane | IV. Phospholipid Bilayer |
Choose the correct answer from the options given below:
(1) A-I, B-II, C-III, D-IV
(2) A-II, B-I, C-IV, D-III
(3) A-IV, B-II, C-III, D-I
(4) A-II, B-III, C-I, D-IV
Answer: Option (4)
Explanation:
The centromere is a specialized region of the chromosome that plays a crucial role during cell division by holding sister chromatids together and facilitating their proper segregation.
A cilium is a hair-like cellular structure that helps in cell movement or movement of substances over the cell surface.
Cristae are folds of the inner membrane of the mitochondrion and increase the surface area for cellular respiration.
The cell membrane is composed of a phospholipid bilayer that forms the basic structural framework of the membrane.
Hence, the correct matching is A-II, B-III, C-I, and D-IV.