IGCSE Biology Notes: Plant Transport & Transpiration
IGCSE biology notes on plant transport compare xylem and phloem, explain transpiration stream, and list factors affecting transpiration rate.
Hub: IGCSE biology notes · Transport in plants · Photosynthesis.
Xylem vs phloem table
| Xylem | Phloem | |
|---|---|---|
| Substance | Water + minerals | Sucrose (assimilates) |
| Direction | Upwards mainly | Up and down |
| Structure | Dead hollow cells | Living sieve tubes |
Transpiration factors
Wind, temperature, humidity, light — predict effect in notes with arrows ↑↓.
Frequently asked questions
Root hair cell notes?
Link to cell structure notes and transport in cells.
Potometer practical?
One diagram + variables in margin.
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