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': 'The Co-enzyme required for the synthesis of fatty acid synthesis is: \nSelect and explain. \nA. FAD, B. FADH2, C. NAD, D. NADPH', 'role': 'user'}, {'content': "Answer: D \nExplanation: The Main Source of NADPH for Lipogenesis Is the Pentose Phosphate Pathway.\nThe pentose phosphate pathway is an alternative route for the metabolism of glucose. It does not lead\xa0 to formation of ATP but has two major functions:\n\nThe formation of NADPH for synthesis of fatty acids and steroids, and maintaining reduced\xa0 glutathione for anti- oxidant activity.\nThe synthesis of ribose for nucleotide and nucleic acid formation.\n\nRef:Harper's Illustrated Biochemistry 30th Edition 196", 'role': 'assistant'}]