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 most important source of reducing equivalents for fatty acid synthesis in the liver is \nSelect and explain. \nA. Glycolysis, B. TCA cycle, C. Uronic acid pathway, D. HMP pathway', 'role': 'user'}, {'content': 'Answer: D \nExplanation: HMP pathway\xa0\n\nThe main source of NADPH for lipogenesis is the pentose phosphate pathway: PPP (also called the hexose monophosphate pathway: HMP).', 'role': 'assistant'}]