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': 'True about facilitated diffusion are all except: \nSelect and explain. \nA. Occur in direction of concentration gradient., B. Does not require energy., C. Occur in direction opposite to electrical gradient., D. Facilitated by charge of molecule.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ganong 22 –31\nWhen carrier proteins move substances in the direction of their chemical or electrical gradient, no energy input is required and the process is called facilitated diffusion.\nDiffusion- process in which solute particles move from a more concentrated environment to a less concentrated one in order to bring a uniform concentration throughout.', 'role': 'assistant'}]