This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Biochemistry
[{'content': 'All are cofactors for Dehydrogenase except: \nSelect and explain. \nA. NADP, B. FAD, C. NAD, D. SAM', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Dehydrogenases - remove H2 and which is usually taken up by their cofactors: 1. FAD - FADH2 - (ETC) 2. NAD - NADH - (ETC) 3. NADP - NADPH NADPH - used in anabolic pathway - SAM (S - Adenosyl Methionine) (Donor of methyl group) is a nucleotide but not a cofactor.', 'role': 'assistant'}]