This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
All of the following are true about cell membrane lipids except 
Select and explain. 
A. Amphipathic in nature, B. Exhibit lateral diffusion along with proteins, C. Exhibit symmetrical arrangement, D. Form bilayer
C: Exhibit symmetrical arrangement
Answer: C: Exhibit symmetrical arrangement 
Explanation: Membrane lipids are amphipathic. Membrane lipids form bilayers. An indicator of the dynamic nature of membranes is that a variety of studies have shown that lipids and ceain proteins exhibit lateral diffusion in the plane of their membranes. There is also inside-outside asymmetry of the phospholipids. The choline-containing phospholipids (phosphatidylcholine and sphingomyelin) are located mainly in the outer leaflet; the aminophospholipids (phosphatidylserine and phosphatidylethanolamine) are preferentially located in the inner leaflet. .