Students investigated the change in mass of turnip slices when placed in different concentrations of sugar solution. The table below shows their results.
| Solution | Test 1 (g) | Test 2 (g) | Test 3 (g) | Mean (g) |
|---|---|---|---|---|
| Dilute sugar solution | 1.4 | 1.7 | 1.4 | XXX |
| Concentrated sugar solution | -6.2 | -6.4 | -28.9 | -6.3 |
Calculate the mean value XXX for the dilute sugar solution.
30 exam-style questions on AQA GCSE Biology 1.3 Transport in cells, covering 1.3.1 Diffusion, 1.3.2 Osmosis, and 1.3.3 Active transport. Each one has a worked solution and a mark scheme showing where the marks go.