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Question

The movement of tentacles in Drosera towards the source of nutrition is an example of:


  1. Ethylene 

  2. Zeatin 

  3. GA 

  4. IAA 


Solution

The correct option is D

IAA 


Chemotropism is the movements exhibited by plants as a response to chemical stimulus. The movement of plants towards the chemical component is positive chemotropism and the movement that drives plant parts away from the stimulus is called negative chemotropism. The movement of tentacles in Drosea towards the source of nutrition is an example of positive chemotropism.

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