Define chemotropism. Give one example of chemotropism. State whether this example is of positive chemotropism or negative chemotropism.

The growth of plant parts in response to the chemical stimulus is known as chemotropism.

For example, the growth of a pollen tube towards the ovule induced by a sugary substance as a stimulus. This is an example of positive chemotropism as the pollen tube grows towards the stimulus.

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Updated on: 24-Mar-2023

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