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    Biology A-Level

    synaptic knob

    What synaptic knob means in Biology A-Level, as defined for AQA.

    Definition of synaptic knob

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    The structure at the end of one neurone, containing many mitochondria, a large amount of smooth endoplasmic reticulum and vesicles filled with acetylcholine.
    AQA · Synaptic transmission (A-level only) (study guide)

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