Q. 35 B5.0( 4 Votes )

What is meant by 'positive geotropism' and 'negative geotropism? Give one example of each type. Draw a labeled diagram to illustrate your answer indicating the plant part which shows positive geotropism and the plant part which shows negative geotropism.

Answer :

Positive geotropism is movement of a plant part towards the direction of gravity. For example, roots grow in the soil.

Negative geotropism is the movement of a plant part against the direction of gravity. For example, Stem or shoot grow outside the soil.


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