This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Physiology
[{'content': 'Following occurs in living cells only- \nSelect and explain. \nA. Simple diffusion, B. Facilitated diffusion, C. Osmosis, D. Active transport', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is \'d\' i.e., Active transport "Because the formation and breakdown of ATP require cell activity, active transport mechanisms occur through living membranes."* Active transport require energy (ATP). Energy is produced in living cells. Therefore, active transport is possible only in living cells.', 'role': 'assistant'}]