Question 5:
Design an experiment to demonstrate hydrotropism.
Answer:
Take two small beakers and label them as A and B. Fill beaker A with water. Now
make a cylindrical-shaped roll from a filter paper and keep it as a bridge between
beaker A and beaker B, as shown in the figure. Attach few germinating seeds in the
middle of the filter paper bridge. Now, cover the entire set-up with a transparent
plastic container so that the moisture is retained.
Observation:
The roots of the germinating seeds will grow towards beaker A.
This experiment demonstrates the phenomenon of hydrotropism.
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