MCAT Biochemistry Question 159: Answer and Explanation

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Test Information

Question: 159

9. Which of the following best characterizes the process of fatty acid synthesis?

  • A. Two reductions followed by a dehydration and bond formation.
  • B. Reduction followed by activation, bond formation, dehydration, and reduction.
  • C. Activation followed by bond formation, reduction, dehydration, and reduction.
  • D. Activation followed by bond formation, oxidation, dehydration, and reduction.

Correct Answer: C

Explanation:

The steps in fatty acid synthesis are activation (attachment to acyl carrier protein), bond formation (between malonyl-CoA and the growing fatty acid chain), reduction (of a carboxyl group), dehydration, and reduction (of a double bond).

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