This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'The major mineral in the cell membrane is: \nSelect and explain. \nA. Cholesterol, B. Calcium, C. Sodium, D. Phosphorus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Phosphorus is the major mineral in cell membrane It is present in the form of phospholipid', 'role': 'assistant'}]