Biochemistry Which of the following groups of amino acids produce a common component of the TCA cycle? A Alanine, isoleucine, leucine, lysine B Serine, asparagine, glycine, glutamate C Isoleucine, valine, methionine D Proline, leucine, tryptophan 💡 Explanation Which of the following groups of amino acids produce a common component of the TCA cycle? ✓ Correct Answer: C. Isoleucine, valine, methionine