A technician at a botanical garden records the rate of water uptake by a leafy shoot during a monitoring session.
| Observation | Rate of water uptake in mm3\text{mm}^3mm3 per minute |
|---|---|
| Beginning | 4.0 |
| End | 10.0 |
Calculate the increase in water uptake rate as a percentage of the rate at the beginning of the monitoring session.
80 exam-style questions on Edexcel GCSE Biology 6.2 Transport in plants, covering 6.2.1 Root hair cell adaptations, 6.2.2 Structure of xylem and phloem, 6.2.3 Transpiration and stomata, 6.2.4 Translocation of sucrose, 6.2.5 Leaf structure for photosynthesis, 6.2.6 Environmental factors on water uptake, 6.2.7 Rate calculations for transpiration, and 6.2.8 Plant adaptations to extreme environments. Each one has a worked solution and a mark scheme showing where the marks go.