IGCSE Biology Notes: Respiration
IGCSE biology notes on respiration cover aerobic and anaerobic pathways, ATP as energy currency, and fermentation examples (yeast, muscle).
Hub: IGCSE biology notes · Respiration guide · Gas exchange.
Your respiration note page
| Section | Content |
|---|---|
| Aerobic | Glucose + O₂ → CO₂ + H₂O + ATP |
| Anaerobic | Lactic acid (muscle); ethanol + CO₂ (yeast) |
| Uses of energy | Growth, active transport, temperature |
| Compare | Photosynthesis not the same equation reversed in words sloppily |
Frequently asked questions
Do I need mitochondria diagram?
Often yes in extended answers — link to cell notes.
Practical fermentation notes?
Method, temperature control, gas collection — one paragraph in notes.
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