| Assertion (A): | Oxidative phosphorylation occurs in the inner mitochondrial membrane. |
| Reason (R): | The inner mitochondrial membrane is permeable to protons. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |