Biology A-Level
chemiosmosis
What chemiosmosis means in Biology A-Level, as defined for AQA.
Definition of chemiosmosis
Check what you remember
Read the wording for your board, then hide it and explain chemiosmosis in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Protons pass back into the stroma through ATP synthase, and their movement drives the synthesis of ATP from ADP and inorganic phosphate.
Topics that use chemiosmosis
- Photosynthesis (A-level only) (AQA A-Level)
Related terms
- ATP hydrolysis
- colorimetry
- DCPIP
- dehydrogenase activity
- energy for reduction
- limiting factors
- photolysis of water
- reduced NADP
Using chemiosmosis 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