This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
[{'content': 'Cytochrome oxidase in oxidative phosphorylation is inhibited by \nSelect and explain. \nA. CO, B. H2S, C. Rotenone, D. Amobarbital', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cyanide and carbon monoxide kill because they disrupt the physiologic function of the heme proteins cytochrome oxidase and hemoglobin,respectively.Ref: Harper&;s Biochemistry; 30th edition; Chapter 6 Proteins: Myoglobin & Hemoglobin', 'role': 'assistant'}]