Skip to content
    Combined Science GCSE

    Catalysis and alternative reaction pathways

    What Catalysis and alternative reaction pathways means in Combined Science GCSE, as defined for AQA.

    Definition of Catalysis and alternative reaction pathways

    Check what you remember

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

    Reference: AQA

    A catalyst provides an alternative pathway with a lower activation energy, so the peak is lower while the overall energy change stays the same.
    AQA · Catalysts (study guide)

    Topics that use Catalysis and alternative reaction pathways

    Related terms

    Using Catalysis and alternative reaction pathways in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Combined Science questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Combined Science GCSE terms