primary structure of a polypeptide
What primary structure of a polypeptide means in Biology A-Level, as defined for AQA.
Definition of primary structure of a polypeptide
Check what you remember
Read the wording for your board, then hide it and explain primary structure of a polypeptide in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The sequence of amino acids in a polypeptide, which determines how the chain folds and therefore what it can do.
Topics that use primary structure of a polypeptide
- DNA, genes and chromosomes (AQA A-Level)
Related terms
- alleles
- base sequence
- chromatin
- circular organelle DNA
- crossing over
- degenerate code
- endosymbiotic theory
- functional RNA
Using primary structure of a polypeptide 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 Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge