exothermic reaction
What exothermic reaction means in Biology GCSE, as defined for OCR.
Definition of exothermic reaction
Check what you remember
Read the wording for your board, then hide it and explain exothermic reaction in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Cellular respiration is classified chemically as this because the total bond energy of the products is lower than that of the reactants.
Topics that use exothermic reaction
- Respiration (OCR GCSE)
Related terms
- Aerobic respiration
- Anaerobic respiration
- Cellular respiration
- Energy transfer
- Fermentation
- glycerol and fatty acids
- glycogen
- homeostasis
Using exothermic reaction 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