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What is 1 + 3?
framework of the membrane, which consists of two layers of phospholipid
half of a phospholipid bilayer
means that individual molecules remain in close association yet have the ability to readily move within the membrane
is a group of lipids that float together as a unit within a larger sea of lipids
process of covalently attaching a carbohydrate to a lipid or protein
the movement of ions and molecules across biological membranes
barrier between a cell and its external environment ex. plasma membrane