1.

What is chemotropism? Explain it with suitable example.

Answer»

1. Response of a plant towards chemicals is known as chemotropism. 

2. If we taste the carpel of a flower, it is sweet. 

3. Butterflies flutter on flowers for nectar. 

4. Ripen stigma secretes sugary substance. 

5. This chemical substance stimulates the pollen grain which falls on the stigma. 

6. Pollen grains respond to this stimulus as pollen tubes grow to reach the ovule for fertilization.



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