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    Biology GCSE

    Tropisms

    What Tropisms means in Biology GCSE, as defined for AQA.

    Definitions of Tropisms

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

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    Reference: AQA

    Unequal auxin distribution causes unequal growth rates, which produce the bending seen in tropisms.
    AQA · Control and coordination (study guide)
    Directional growth responses to a stimulus such as light or gravity.
    AQA · Control and coordination (study guide)

    Topics that use Tropisms

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    Using Tropisms in the exam

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