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': 'True about lipid bilayer of cell wall: \nSelect and explain. \nA. Asymmetrical arrangement of cell membrane component, B. Lateral diffusion of ions, C. Symmetrical arrangement of cell membrane component, D. Not made up of amphipathic lipids', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Asymmetrical arrangement of cell membrane component(Ref: Ganong, 25th ed/p.36)Most lipids are distributed unequally (asymmetric distribution)Some lipids are present on the outer surface of membrane. For example Glycolipids are usually seen on the outer sideSome lipids are present on the inner surface of membrane. For example phosphatidylinositol, and phosphatidylserine are usually seen on the inner side', 'role': 'assistant'}]