Question

Which of the following hormones stimulates the growth of cells in the direction of seedling in plants, which is away from the light?
1. Cytokinin
2. Auxin
3. Gibberellin
4. Abscisic acid

Answer 1

Correct Answer - Option 2 : Auxin

The correct answer is Auxin.

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• Auxin :
  • Auxin hormones stimulate the growth of cells in the direction of seedling in plants, which is away from light.
  • Cell elongation and longitudinal growth.
  • Auxin is chemically known as Indole 3-acetic acid.
• Gibberellin :
  • ​Elongation of the stem.
  • Kurosawa discovered it in 1926.
  • Reversal of dwarfism in plants.
• Cytokinin :
  • ​It acts on cell division but has little or no effect on growth.
  • It breaks the dormancy of many seeds and promotes their generation.