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': 'Which conves Succinyl CoA to succinic acid? \nSelect and explain. \nA. Succinate thiokinase, B. Succinate dehydrogenase, C. Succinate, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Succinyl-CoA synthetases catalyze the conversion of succinyl-CoA to succinate and CoA in the citric acidcycle. The energy of the thioester bond is conserved through the coupled phosphorylation of nucleoside diphosphates such as ADP or GDP. However, the reverse reaction is also impoant for the anabolism. Ref biochemistry u. Satyanarayana 5/e p256', 'role': 'assistant'}]