MCAT Biochemistry Question 20: Answer and Explanation
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Question: 20
5. Enzymes increase the rate of a reaction by:
- A. decreasing the activation energy.
- B. increasing the overall free energy change of the reaction.
- C. increasing the activation energy.
- D. decreasing the overall free energy change of the reaction.
Correct Answer: A
Explanation:
Enzymes increase the rate of a reaction by decreasing the activation energy. They do not affect the overall free energy, ΔG, of the reaction.