This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Classification and metabolism of amino acids, Subject name: Biochemistry
[{'content': 'All of the following are cofactors for Branched chain ketoacid dehydrogenase, EXCEPT \nSelect and explain. \nA. FAD, B. Lipoamide, C. NADP, D. Thiamin pyrophosphate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Thiamin pyrophosphate (Vit B1), Lipoic Acid, Coenzyme A (B5), FAD (Vitamin B2) and NAD+ (Vitamin B3) are required as cofactors for the following 3 enzymes, Pyruvate dehydrogenase a-keto glutarate dehydrogenase Branched chain keto acid dehydrogenase All these 3 enzymes are multienzyme complexes of three different enzymes.', 'role': 'assistant'}]