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Question

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


Solution

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

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


Biology
Science for Tenth Class - Part III - Biology
Standard X

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