Question

The roots of a coconut tree are seen growing far from the plant. Such a kind of
movement of root for want of water is __________ .
i) Phototropism ii) Geotropism iii) Chemotropism iv) Hydrotropism

Answer 1

Hydrotropism is a plants response for water for the purpose of its growth.

The response can be positive, inclined to towards the water or negative away from the water.

Roots, for instance, are positively hydrotropic.

That means that they grow towards moist soils to avoid drought stress.

Once a root cap has sensed water it bends and then the root grows towards the water source.

Answer 2

hydrotropism


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