A young root is initially straight. A researcher measures the auxin concentration and mean cell length on opposite sides of its growing region.
| Side of growing region | Auxin concentration in tissue (ng per g) | Mean cell length at start (μm) | Mean cell length at end (μm) |
|---|---|---|---|
| P | 18 | 90 | 120 |
| Q | 6 | 92 | 172 |
Explain which side the root will curve towards. Use the information in the table in your answer.
105 exam-style questions on Edexcel GCSE Biology 6.3 Plant hormones, covering 6.3.1 Plant hormones and tropisms and 6.3.2 Commercial uses of plant hormones. Each one has a worked solution and a mark scheme showing where the marks go.