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: Physiology
[{'content': 'Na+-1C+ ATPase is a - \nSelect and explain. \nA. Extrinsic protein, B. Peripheral protein, C. Transmembrane protein, D. Intracellular proteins', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is'c'i.e., Transmembrane proteinlRef: Principles of medical physiology p. 5I2) .Ion pumps (including Na* - K. ATPase) and channels are integral (Transmembrane) proteins.", 'role': 'assistant'}]