Chemistry A-Level
Fermentation
What Fermentation means in Chemistry A-Level, as defined for AQA.
Definition of Fermentation
Check what you remember
Read the wording for your board, then hide it and explain Fermentation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The breakdown of sugars by enzymes in yeast in the absence of oxygen to produce ethanol and carbon dioxide.
Topics that use Fermentation
- Elimination (AQA A-Level)
Related terms
- carbocation intermediate
- competing reactions
- condenser water direction
- dehydration of alcohols
- drying and washing the product
- elimination of water
- elimination to an alkene
- Functional group
Using Fermentation 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