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: Unknown
[{'content': 'Fluidity buffer present in cell membrane is \nSelect and explain. \nA. Stearic acid, B. Palmitic acid, C. Cholesterol, D. Linoleic acid', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Membrane fluidity\nMembrane fluidity changes with temperature Transition temperature (Tm)\n“More is the Tm,less is the fluidity”\nCholesterol-Fluidity buffer\nSaturated FAs\nincrease Tm and decrease fluidity Unsaturated FAs\ndecrease Tm and increase fluidity', 'role': 'assistant'}]