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    Biology A-Level

    power stroke

    What power stroke means in Biology A-Level, as defined for AQA.

    Definition of power stroke

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    Reference: AQA

    The bending of the myosin head that pulls the actin filament towards the centre of the sarcomere, driven by the release of ADP and Pi.
    AQA · Skeletal muscles are stimulated to contract by nerves and act as (study guide)

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