MCAT Biochemistry Question 165: Answer and Explanation
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Question: 165
15. Which of the following is LEAST likely to result from protein degradation and processing by the liver?
- A. Fatty acids
- B. Glucose
- C. Acetoacetate
- D. 3-Hydroxybutyrate
Correct Answer: A
Explanation:
The degradation of protein and processing by the liver implies a prolonged starvation state; protein will not be used for energy unless absolutely necessary. Thus, gluconeogenesis is the most likely process. When gluconeogenesis is not possible, easily metabolized molecules, such as ketone bodies, are synthesized. Fatty acid production occurs when energy is being stored; proteins would not be broken down to store energy in fatty acids.