A researcher placed equal masses of the same type of leafy herb in two storage rooms. The cut ends of the stems were kept in water. Light intensity was the same in both rooms.
The table shows the conditions in each room.
| Room | Temperature in °C | Humidity in % | Air movement in m/s |
|---|---|---|---|
| A | 12 | 85 | 0.1 |
| B | 24 | 45 | 1.0 |
Which room would cause the herbs to have the greater rate of transpiration? Explain your answer.
After 30 minutes, some of the stomata on the herbs in Room B close. Explain how this would affect the rate of transpiration.
74 exam-style questions on AQA GCSE Biology 2.3 Plant tissues, organs and systems, covering 2.3.1 Plant tissues and 2.3.2 Plant organ system. Each one has a worked solution and a mark scheme showing where the marks go.