must pass through the endodermis to enter the xylem. Once water is in the xylem of the
root, it will pass up the xylem of the stem.
Figure 6.28: Step-by-step transport of water in plants, from the roots to the xylem.
Investigation: Measuring the uptake of water by roots
Aim:
To measure the uptake of water by roots.
Apparatus:
- plastic 2 litre Coke bottle
- water
- soil
- scissors
- measuring scale
- tree or plant cuttings
Chapter 6. Support and transport systems in plants 181