The table shows measurements from a marked region of a plant root.
Table
| Measurement | Start | After 6 hours |
|---|---|---|
| Number of cells | 20 | 20 |
| Mean cell length / mm | 0.05 | 0.09 |
Which conclusion is supported by these results?
The region grew mainly through cell division.
The region grew mainly through chromosome replication.
The region grew mainly through cell elongation.
The region grew mainly through cell differentiation.
42 exam-style questions on Edexcel GCSE Biology 2.1 Cell division and growth, covering 2.1.1 Mitosis and the cell cycle, 2.1.2 Division producing identical daughter cells, 2.1.3 Cancer and uncontrolled cell division, 2.1.4 Growth in animals and plants, 2.1.5 Importance of cell differentiation, and 2.1.6 Percentile charts to monitor growth. Each one has a worked solution and a mark scheme showing where the marks go.