A laboratory grows identical animal cells in two vessels containing excess glucose. Oxygen is supplied to vessel A but not to vessel B.
The table shows the mean ATP yield from each glucose molecule.
| Vessel | Oxygen supplied | ATP molecules made per glucose molecule |
|---|---|---|
| A | Yes | 30 |
| B | No | 2 |
The cells in each vessel need to make 1800 ATP molecules.
Calculate how many more glucose molecules the cells in vessel B must break down than the cells in vessel A to make 1800 ATP molecules.
Explain why more glucose is required in vessel B.
92 exam-style questions on AQA GCSE Biology 4.2 Respiration, covering 4.2.1 Aerobic and anaerobic respiration, 4.2.2 Response to exercise, and 4.2.3 Metabolism. Each one has a worked solution and a mark scheme showing where the marks go.