| Assertion (A): | High temperature destroys enzymatic activity. |
| Reason (R): | Enzymes generally function in a narrow range of temperatures. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but the (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
| I: | Almost all enzymes are proteins. |
| II: | Some nucleic acids can behave like enzymes. |
| III: | No enzyme in living organisms can function above 40 °C. |
| IV: | Enzymes are the reason that chemicals react with each other. |
| V: | Enzymes are not sensitive to pH in their environment. |