This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory Chain, Subject name: Biochemistry
[{'content': 'Subtrate level phosphorylation occurs at - \nSelect and explain. \nA. Pyruvate kinase, B. Glucokinase, C. Glucose-6-phosphatase, D. a-ketoglutarate dehydrogenase', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Pyruvate kinase o There are 2 types of phosphorylation of ADP to ATP.1) Substrate level phosphorylation2) Oxidative phosphorylation at respiratory chain levelo Substrate level phosphorylation is the production of ATP at the substrate level without participation of ETC.o It occurs in TCA cycle and glycolysis. Succinate thiokinase Citric Acid cydeSuccinyl Co-A-------------------Succinate1. 1, 3-BiphosphoglyceratePhosphoglycerate kinase Glycolys-------------------3-Phosphoglycerate2. Phosphoenolpyruvate Pyruvate kinase-------------------Pyruvate", 'role': 'assistant'}]