Question

growth of pollen tube towards ovule is an example of which of the following tropic movement?
1) chemotropism
2) hydrotropism
3) positive geotropism
4) negative geotropism

Answer 1

Answer:

chemotropism

Explanation:

The growth of pollen tube towards ovule is an example of chemotropism.

Chemotropism is the movement of plant part towards a chemical stimuli.

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Answer 2

Growth of pollen tube towards ovule is an example of Chemotropism.

Option: (1)

Explanation:  

• The ovary of the flowers releases a certain type of chemical full. This chemical helps the pollen and the Pollen tube to guide the way to come in contact of the egg of the flower.  

• This type of movement when one cell move towards the other due to Chemicals released by the second cell, is known as chemotactic movement.

• The movement of the ‘Pollen tube’ towards the egg is an example chemotactic movement or chemotropism.

Learn more about Chemotropism

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