A student compares the products and ATP yield from each pathway per glucose molecule respired.
| Pathway | ATP molecules made | Products |
|---|---|---|
| Aerobic respiration in muscle cells | 30 | Carbon dioxide and water |
| Anaerobic respiration in muscle cells | 2 | Lactic acid |
| Anaerobic respiration in yeast | 2 | Ethanol and carbon dioxide |
Predict which products are likely to retain energy, and explain your prediction using the data.
113 exam-style questions on OCR GCSE Biology 1.3 Respiration, covering 1.3.1 Cellular respiration supplies ATP, 1.3.2 Aerobic and anaerobic respiration, 1.3.3 Sugars and carbohydrates, 1.3.4 Amino acids and proteins, and 1.3.5 Fatty acids and lipids. Each one has a worked solution and a mark scheme showing where the marks go.