This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of protein and amino acid, Subject name: Biochemistry
The amino acids producing ammonia in kidney is 
Select and explain. 
A. Methionine, B. Glycine, C. Glutamine, D. Alanine
C: Glutamine
Answer: C: Glutamine 
Explanation: Transpoation of Ammonia : Inside the cells of almost all tissues , tge transamination of aminoacids produce glutamic acid . However, glutamate dehydrogenase is available is available only in liver . In kidney the ammonia is formed to Glutamine by the enzyme Glutamine synthetase. Ref : DM.VASUDEVAN.TEXTBOOK SEVENTH EDITION ; PAGE NO : 203