AQA GCSE Combined Science Trilogy · 8464
Specification 4.2.2.1 · Paper 1
Revise: Enzyme action and investigating pHPart of that shape forms an active site: the region where the substance being acted on, called the substrate, binds.
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GCSE Combined Science · key term
The region of an enzyme where a substrate binds and the reaction is catalysed.
Used by AQA and Edexcel
Specification 4.2.2.1 · Paper 1
Revise: Enzyme action and investigating pHPart of that shape forms an active site: the region where the substance being acted on, called the substrate, binds.
Paper 1, Paper 2
The region of an enzyme where a substrate binds and the reaction takes place.
Revise: EnzymesThe substance an enzyme acts on is its substrate. It binds to a particular region of the enzyme called the active site.
Explain specificity using the complementary shapes of the substrate and active site, not simply by saying that an enzyme is specific.
Distinguish low temperature from denaturation: cooling slows molecular movement without destroying the active site's shape.
Explain specificity using a substrate shape that is complementary to the active site, not merely by saying that an enzyme is specific.
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