This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urea cycle, Subject name: Biochemistry
[{'content': 'In the biosynthesis of urea, one nitrogen atom is derived from ammonia while the other nitrogen atom is from: \nSelect and explain. \nA. Glycine, B. Alanine, C. Aspaate, D. Glutamate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Nitrogens of urea are derived from:- N1 from ammonia N2 from Aspaate Source of urea Carbon and Nitrogen.', 'role': 'assistant'}]