Which of the following statements about competitive inhibitors of enzyme action are correct? 1 Raising the concentration of the enzyme’s substrate will lessen their effect. 2 They attach to an enzyme at its active site. 3 They lower the activation energy needed for a reaction to occur. 4 They decrease the maximum rate of reaction.
- A1 and 2 only
- B1 and 3 only
- C2 and 3 only
- D2, 3 and 4 only