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Question
Give one example of chemotropism. State whether this example is of positive chemotropism or negative chemotropism.
Solution
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.
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RELATED QUESTIONS
Define chemotropism.
What are the different types of tropisms? Define each type of tropism. Write the name of stimulus in each case
The plant part which exhibits negative geotropism is :
(a) root
(b) stem
(c) branch
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(a) hydrocarbon
(b) hydrogen oxide
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