MCAT Biochemistry Question 153: Answer and Explanation
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Question: 153
3. During fatty acid mobilization, which of the following occur(s)?
I. HSL is activated.
II. Free fatty acids are released.
III. Gluconeogenesis proceeds in adipocytes.
- A. I only
- B. III only
- C. I and II only
- D. II and III only
Correct Answer: C
Explanation:
During fatty acid mobilization, there is a breakdown of triacylglycerols in adipocytes by hormone-sensitive lipase (HSL). This breakdown results in the release of three fatty acids and a glycerol molecule. The glycerol may be used by the liver for gluconeogenesis, but adipocytes do not have the ability to carry out gluconeogenesis.