Food Preparation and Nutrition GCSE
Denaturation
What Denaturation means in Food Preparation and Nutrition GCSE, as defined for AQA.
Definitions of Denaturation
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
The irreversible change in the tertiary structure of an enzyme's protein, rendering it inactive, typically caused by heat or pH extremes.
The physical change in the shape of protein molecules caused by heat, agitation, or acids.
Topics that use Denaturation
- Food safety (AQA GCSE)
- Food science (AQA GCSE)
Related terms
- Biological Fermentation
- Blanching
- Carbohydrate Transformations
- Chemical Leavening Mechanisms
- Chemical Oxidation
- Chemical Stability and Food Safety
- Cross-contamination
- Cross-Contamination Vectors
Using Denaturation in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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