Edexcel IGCSE Biology · Spec 2.34-2.38
Respiration
Aerobic and anaerobic respiration compared — the equations, the energy released, and lactic acid and fermentation.
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Respiration
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Spec 2.34-2.38
What you need to know
- Explain what respiration does — it releases energy as ATP
- Recall aerobic respiration and its equation
- Recall anaerobic respiration in animals and in yeast
Active recall
Quick check
Answer each question before opening the answer.
Give the word equation for aerobic respiration.
Glucose + oxygen → carbon dioxide + water (+ energy released).
Give the products of anaerobic respiration in humans and in yeast.
Humans: lactic acid. Yeast: ethanol + carbon dioxide.
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