What you'll learn
How cells release energy.
Key ideas
- Aerobic respiration (in mitochondria) and its equation.
- Anaerobic respiration: lactic acid (humans), ethanol + CO₂ (yeast).
Exam tips
- Learn the word equation.
- Explain the oxygen debt.
Common mistakes
- Confusing respiration with breathing.
- Muddling human and yeast anaerobic products.