What does a plant root do in response to water? What is this phenomenon known as? [2 Marks]

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Solution

A plant’s roots grow in the direction of water.
The movement of plant parts in response to water is known as hydrotropism.
[1 Mark]

$∙$ The roots of a plant always go towards water due to positive hydrotropism.
[0.5 Marks]
$∙$ On the other hand, the shoot of a plant moves away from water. This is negative hydrotropism.
[0.5 Marks]

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