A scientist counts cells in a root tip.
Table
| Stage | Number of cells |
|---|---|
| Interphase | 160 |
| Prophase | 20 |
| Metaphase | 8 |
| Anaphase | 4 |
| Telophase | 8 |
The cell cycle lasts 15 hours. Assume the proportion of cells in each stage equals the proportion of time spent in that stage.
What is the estimated time spent in metaphase?
24 minutes
30 minutes
36 minutes
45 minutes
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.