| I: | are the outgrowths of the cell membrane. |
| II: | have a 9 + 0 arrangement of microtubules in their axoneme. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Match the following and select the correct answer :
| (a) | Centriole | (i) | Infoldings in mitochondria |
| (b) | Chlorophyll | (ii) | Thylakoids |
| (c) | Cristae | (iii) | Nucleic acids |
| (d) | Ribozymes | (iv) | Basal body cilia or flagella |
| A | B | C | D | |
| 1. | (iv) | (ii) | (i) | (iii) |
| 2. | (i) | (ii) | (iv) | (iii) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (iv) | (iii) | (i) | (ii) |
| I: | Smooth endoplasmic reticulum: Lipid synthesis |
| II: | Cilia and flagella: 9 + 0 arrangement of microtubules |
| III: | Centriole: 9 + 2 arrangement of microtubules |
| Assertion (A): | The 9+2 arrangement of microtubules is a characteristic feature of the axoneme of cilia and flagella. |
| Reason (R): | The axoneme consists of nine peripheral microtubule triplets and two central microtubules, all enclosed by the plasma membrane. |
| 1. | Both (A) and (R) are True, and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True, but (R) is not the correct explanation of (A) |
| 3. | (A) is True, but (R) is False |
| 4. | (A) is False, but (R) is True |
| Assertion (A): | The 9+2 arrangement of microtubules is a characteristic feature of the axoneme of cilia and flagella. |
| Reason (R): | The axoneme consists of nine peripheral microtubule doublets and two central microtubules, all enclosed by the plasma membrane. |
| 1. | Both (A) and (R) are True, and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True, but (R) is not the correct explanation of (A) |
| 3. | (A) is True, but (R) is False |
| 4. | (A) is False, but (R) is True |