Biology A-Level
antigens in vaccines
What antigens in vaccines means in Biology A-Level, as defined for AQA.
Definition of antigens in vaccines
Check what you remember
Read the wording for your board, then hide it and explain antigens in vaccines in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A vaccine introduces antigens into the body without causing the disease, and they may come from a dead pathogen, an attenuated living pathogen, an isolated antigen, an inactivated toxin, or from mRNA.
Topics that use antigens in vaccines
- Cell recognition and the immune system (AQA A-Level)
Related terms
- active immunity
- agglutination
- animal use in production and testing
- antibody
- antigen
- antigen-antibody complex
- antigen-presenting cell
- Collapse of the specific response
Using antigens in vaccines 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.
Start free
All Biology A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge