This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of protein and amino acid, Subject name: Biochemistry
[{'content': 'Iron-sulfur proteins are components of \nSelect and explain. \nA. Citric acid cycle, B. ATP synthase, C. b-oxidation, D. Respiratory chain', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Flavoproteins & Iron-Sulfur proteins (Fe-S) are Components of the Respiratory Chain Complexes.Iron-sulfur proteins (nonheme iron proteins, Fe-S) are found in Complexes I, II, and III. These may contain one, two, or four Fe atoms linked to inorganic sulfur atoms and/or cysteine SH groups to the protein. The Fe-S take pa in single electron transfer reactions in which one Fe atom undergoes oxidoreduction between Fe2+ and Fe3+.Reference: Harper&;s Biochemistry; 30th edition; Chapter13;The respiratory chain & Oxidative phosphorylation', 'role': 'assistant'}]