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    Biology A (Salters-Nuffield) A-Level

    Negative feedback

    What Negative feedback means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.

    Definitions of Negative feedback

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

    Check what you remember

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

    Reference: Pearson Edexcel

    A mechanism that reverses a deviation from the set point to restore the original level, opposing the initial stimulus.
    Pearson Edexcel · Topic 7: Run for your Life
    Reverses the initial change to restore the set point, preventing enzyme denaturation.
    Pearson Edexcel · Topic 7: Run for your Life

    Topics that use Negative feedback

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    Using Negative feedback in the exam

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