chapter 3.2

    Cards (5)

    • membranes physically seperate cells from their external environment and allow substances to pass between them
    • lipids are the main component of cell membranes
    • amphipathic: molecules that have both hydrophilic and hydrophobic regions
    • micelles: small spheres of lipid molecules that are formed when fatty acids are hydrolysed
    • bilayer: the outer layer of the cell membrane that is made up of phospholipids
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