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
[{'content': 'All are involved in non toxic transpo of ammonia except \nSelect and explain. \nA. Glutamine synthetase, B. Glutaminase, C. Alanine cycle, D. SGPT', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The amino acid used primarily by muscle, for transpo of ammonia to liver is alanine. Most other tissues however use glutamine', 'role': 'assistant'}]