This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': "All of the following metabolic cycles occur in mitochondria, except: \nSelect and explain. \nA. Citric acid cycle (Kreb's cycle), B. Glycogenolysis, C. Fatty acid oxidation, D. Electron transpo chain", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Citric acid cycle, fatty acid oxidation, and electron transpo chain are occurring in mitochondria. But glycogenolysis occurs in the cytoplasm. Ref: Free Radicals And Diseases: Gene Expression, Cellular Metabolism By Tilman Grune, Edition 2005, Page 43.', 'role': 'assistant'}]