This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
[{'content': 'Aldehyde dehydrogenase \nSelect and explain. \nA. Cofactor, B. Apoenzyme, C. Coenzyme, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Aldehyde dehydrogenase, mitochondrial is an enzyme that in humans is encoded by the ALDH2 gene located on chromosome 12. This protein belongs to the aldehyde dehydrogenase family of enzymes. Aldehyde dehydrogenase is the second enzyme of the major oxidative pathway of alcohol metabolism. Two major liver isoforms of aldehyde dehydrogenase, cytosolic and mitochondrial, can be distinguished by their electrophoretic mobilities, kinetic propeies, and subcellular localizations.', 'role': 'assistant'}]