A scientist placed growing root-tip cells in glucose solution inside a sealed chamber containing plenty of oxygen.
The table shows the amounts of three substances in the chamber at the start and after 30 minutes.
| Substance | Amount at start in μmol | Amount after 30 minutes in μmol |
|---|---|---|
| glucose | 12.0 | 10.0 |
| oxygen | 24.0 | 12.0 |
| carbon dioxide | 0.5 | 12.5 |
Give the word equation for the process that caused the changes shown in the table.
The root-tip cells are moved to a solution in which oxygen is in short supply.
Explain how and why the ATP yield from each molecule of glucose would change.
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.