This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Biochemistry
[{'content': 'Enzyme which is a marker for mitochondria is \nSelect and explain. \nA. Glutamate dehydrogenase, B. Acid phosphatase, C. Alkaline phosphatase, D. Hexokinase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Only liver mitochondria contain glutamate dehydrogenase (GDH) which deaminates glutamate to alpha-ketoglutarate plus ammonia. So, all amino acids are first transaminated to glutamate, which is then finally deaminated (transdeamination). So glutamate dehydrogenase acts as the mitochondrial marker for liver cells.Ref: D M Vasudevan 7th edition Page no: 202', 'role': 'assistant'}]