phospholipid or phosphatides lipids microscopical structure outline diagram

phospholipid phosphatide hydrophilic omega 3 head hydrophobic polar tail lipids extracellular space lumen cell membrane biological carbohydrate chemical cellular cholesterol bilayer cytoplasmic illustration layer medical molecule peripheral osmosis science scientific structure vector concept outline diagram scheme labeled educational inner fatty acid glycerol choline ethanolamine inositol molecular explanation example model