Chemistry A-Level
tertiary structure
What tertiary structure means in Chemistry A-Level, as defined for AQA.
Definition of tertiary structure
Check what you remember
Read the wording for your board, then hide it and explain tertiary structure in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The fold of the chain that creates a small cleft, the active site, whose shape and charge distribution are complementary to one particular substrate.
Topics that use tertiary structure
- Enzymes (A-level only) (AQA A-Level)
Related terms
- active site
- computer modelling
- denaturing
- enantiomers
- lower activation energy
- molecular docking
- primary structure unchanged
- stereospecificity
Using tertiary structure 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 Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Chemistry A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge