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': 'TCA cycle does not take place in \nSelect and explain. \nA. Hepatocytes, B. Osteocytes, C. Neuron, D. Erythrocytes', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Erythrocytes (RBC) lack mitochondria (so TCA cycle enzymes) and completely rely on glucose as their metabolic fuel. They metabolize it by anaerobic glycolysis.', 'role': 'assistant'}]