This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Which is not ketogenic 
Select and explain. 
A. Leucine, B. Lysine, C. Methionine, D. Tryptophan
C: Methionine
Answer: C: Methionine 
Explanation: Ans. is 'c >d' i.e., Methionine > TryptophanLeucine and lysine are purely ketogenic.Trypotophan is not purely ketogenic, but it is ketogenic along with glucogenic. Methionine is purely glucogenic.