Chemotropism Movement


 
 
Concept Explanation
 

Chemotropism Movement

The tropic response of organisms to chemicals is known as chemotropism. It is best seen in the growth of pollen tube inside the style, ovary and ovule. Here every region produces its own nutrients and chemotactic chemicals for growth and passage of pollen tube. Chemotropism can be observed by germinating a number of pollen grains in animal medium. A drop of nutrient medium containing boron will result in bending of pollen tubes towards it from all directions.                                      

                                                   

Sample Questions
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Question : 1

Chemotropism can be seen in which of the following organisms :

Right Option : D
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Question : 2

The tropic response of organisms to chemicals is known as _________________________.

Right Option : A
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Question : 3

Growth of pollen tube towards ovule is called

Right Option : D
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Explanation
 
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