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
Na+-1C+ ATPase is a - 
Select and explain. 
A. Extrinsic protein, B. Peripheral protein, C. Transmembrane protein, D. Intracellular proteins
C: Transmembrane protein
Answer: C: Transmembrane protein 
Explanation: 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.