| A. | Enzyme releases products of the reaction and gets free. |
| B. | Substrate induces the enzyme to alter its shape. |
| C. | The substrate binds with the active site of the enzyme. |
| D. | Enzymes-product complex is formed. |
In a reaction catalyzed by an enzyme, which of the following statements is correct ?
| 1. | Enzymes decrease the activation energy for formation of transition state. |
| 2. | Enzymes make transition form substrate to product more difficult. |
| 3. | Enzymes increase the activation energy for formation of transition state. |
| 4. | Enzyme-substrate complex formed during a reaction lasts for a very long time. |