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    Biology A-Level

    phospholipid bilayer

    What phospholipid bilayer means in Biology A-Level, as defined for AQA, OCR.

    Definitions of phospholipid bilayer

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    Reference: AQA

    A stable double layer about 7 nanometres thick with proteins embedded in it, formed because the molecules arrange themselves automatically in an aqueous environment.
    AQA · Transport across cell membranes (study guide)
    The structure formed by phospholipids in water that acts as the selectively permeable barrier of cell membranes.
    OCR · Biological molecules (study guide)

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