This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
[{'content': 'Lactate dehydrogenase is: \nSelect and explain. \nA. Isoenzyme, B. Coenzyme, C. Antienzyme, D. Zymogen', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. IsoenzymeIsoenzymes catalyse the same reaction but differ in physical and structural properties. Lactate dehydrogenase, creatine phosphokinase, alkaline phosphatase and alcohol dehydrogenase are examples of isoenzymes.', 'role': 'assistant'}]