Combined Science GCSE
Enzymes
What Enzymes means in Combined Science GCSE, as defined for AQA.
Definitions of Enzymes
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Reference: AQA
Biological catalysts: globular proteins that lower the activation energy of a reaction and speed it up without being used up.
Proteins whose active site fits a substrate, so the reaction they catalyse happens faster.
Used to cut the gene from the donor DNA and to insert it into the vector.
Topics that use Enzymes
- Genetic engineering (AQA GCSE)
- Key ideas (AQA GCSE)
- The human digestive system (AQA GCSE)
Related terms
- Active site
- Absorption
- Action at a distance
- Activation energy
- Adaptation
- Agricultural applications of genetic engineering
- Amino acids
- Amylase
Using Enzymes in the exam
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