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NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice

Tropic movement is due to

Options

  1. ACell elongation
  2. BCell division
  3. CBoth Cell elongation and Cell division
  4. DCell thickening

Correct answer

A. Cell elongation

Step-by-step solution

Tropic movements are caused by cell elongation and do not affect the whole plant. Different tropic movements are phototropism, geotropism, chemotropism, aerotropism (e.g., positively aerotropic pneumatophores), thermotropism (towards warmth, e.g., peduncles of Tulip, Anemone), rheotropism, galvanotropism and traumatotropism.

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