This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Physiology
[{'content': 'In brain, Which cells convert glutamate to glutamine \nSelect and explain. \nA. Oligodendrocytes, B. Astrocytes, C. Ependymal cells, D. Microglia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Astrocytes(Ref: Ganong, 25th ed/p.85)Astrocytes take up the glutamate and convert it to glutamine with the help of an enzyme glutamine synthase', 'role': 'assistant'}]