Combined Science GCSE
Catalysts
What Catalysts means in Combined Science GCSE, as defined for AQA.
Definitions of Catalysts
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Read the wording for your board, then hide it and explain Catalysts 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, increasing the rate without being used up.
Provide an alternative reaction pathway with lower activation energy, increasing the rate.
Topics that use Catalysts
- Collision theory and activation energy (AQA GCSE)
- Key ideas (AQA GCSE)
Related terms
- Activation energy
- Collision theory
- Action at a distance
- Active site
- Adaptation
- Anaerobic respiration
- Carbon and nitrogen cycles
- Cells
Using Catalysts 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.
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