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': 'Transfer of the carbamoyl moiety of carbamoyl phosphate to ornithine is catalysed by a liver mitochondrial enzyme: \nSelect and explain. \nA. Carbamoyl phosphate synthetase, B. Ornithine transcarbamoylase, C. N-acetyl glutamate synthetase, D. N-acetyl glutamate hydrolase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The carbamoyl group is transferred to the NH2 group of ornithine by ornithine transcarbamoylase (OTC).\nReference: Vasudevan 7th\xa0 ed, pg 204', 'role': 'assistant'}]