A lipid is a type of molecule, a lipid bilayer is one specific structure, of many, that is made of a type of them(lipids), in this case "phospholipids".so it goes like this, there are "lipids" which...
A lipid bilayer is a double layer membrane formed from phospholipids. Phospholipids are composed of a polar head group and non-polar fatty acid tails. The arrangement of the phospholipids makes the...