Biology A-Level
chemoreceptors
What chemoreceptors means in Biology A-Level, as defined for AQA.
Definition of chemoreceptors
Check what you remember
Read the wording for your board, then hide it and explain chemoreceptors in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Receptors in the aortic and carotid bodies that detect a rise in blood carbon dioxide, which lowers blood pH by raising hydrogen ion concentration.
Topics that use chemoreceptors
- Control of heart rate (A-level only) (AQA A-Level)
Related terms
- bundle of His
- medulla oblongata
- sinoatrial node
- sympathetic and parasympathetic pathways
- atrioventricular delay
- myogenic contraction
- pressure receptors
- Purkyne tissue
Using chemoreceptors 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