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    Biology GCSE

    active site

    What active site means in Biology GCSE, as defined for AQA, OCR.

    Definitions of active site

    Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.

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    Read the wording for your board, then hide it and explain active site in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: OCR

    A rigid, complementary three-dimensional shape that binds only one specific substrate to form an enzyme-substrate complex.
    OCR · What happens in cells (and what do cells need)?
    A small region of the enzyme whose shape is complementary to one specific substrate.
    AQA · The human digestive system (study guide)

    Topics that use active site

    Related terms

    Using active site in the exam

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