Question

Which of the following statements is true about brain metabolism in starvation?

(a) The brain can use glucogenic amino acids for energy

(b) The brain can only use glucose as fuel

(c) Up to a quarter of energy requirement of the brain can come from fatty acids

(d) Up to a half of energy requirement of the brain can come from ketone bodies

The question was posed to me in quiz.

I'd like to ask this question from Regulation of Metabolic Pathways in chapter Principles of Metabolic Regulation: Glucose and Glycogen of Biochemistry

Answer 1

The correct option is (a) The brain can use glucogenic amino acids for energy

To explain: Brain does not use amino acids directly but glucose derived from glucogenic amino acids in the liver.