Multiple choice

Which of the following is a pair of exclusively ketogenic amino acids?

  1. Leucine and Isoleucine

  2. Leucine and Lysine

  3. Lysine and Tyrosine

  4. Isoleucine and Lysine

  5. Leucine and Tyrosine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A significant amount of metabolic energy can come from amino acid metabolism, particularly under conditions of starvation. Amino acids that are metabolized to produce acetyl-CoA and acetoacetate are called ketogenic amino acids. In humans, two amino acids are exclusively ketogenic: Leucine and Lysine.

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