MCAT Biochemistry Question 27: Answer and Explanation
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Question: 27
12. Which of the following is NOT a method by which enzymes decrease the activation energy for biological reactions?
- A. Modifying the local charge environment
- B. Forming transient covalent bonds
- C. Acting as electron donors or receptors
- D. Breaking bonds in the enzyme to provide energy
Correct Answer: D
Explanation:
Enzymes are not altered by the process of catalysis. A molecule that breaks intramolecular bonds to provide activation energy would not be able to be reused.