| Assertion(A): | The reaction in glycolysis, catalyzed by the enzyme phosphofructokinase, is a key regulatory point and also a rate limiting step. |
| Reason(R): | The reaction is essentially irreversible. |
| 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 the (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |