MCAT Biochemistry Question 18: Answer and Explanation
Home > MCAT Test > MCAT biochemistry practice tests
Test Information
- Use your browser's back button to return to your test results.
- Do more MCAT biochemistry practice tests.
Question: 18
3. Some enzymes require the presence of a nonprotein molecule to behave catalytically. An enzyme devoid of this molecule is called a(n):
- A. holoenzyme.
- B. apoenzyme.
- C. coenzyme.
- D. zymoenzyme.
Correct Answer: B
Explanation:
An enzyme devoid of its necessary cofactor is called an apoenzyme and is catalytically inactive.