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NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice

Which one of the following pairs is not correctly matched?

Options

  1. AAbscisic acid - Stomatal closure
  2. BGibberellic acid - Leaf fall
  3. CCytokinin - Cell division
  4. DIAA - Cell wall elongation

Correct answer

B. Gibberellic acid - Leaf fall

Step-by-step solution

Gibberellic acid is a growth promoter thus it inhibits leaf fall. Abscisic acid is commonly called stress hormone and it promotes closure of stomata. Cytokinin promotes cell division. IAA is an auxin that induces cell elongation and cell division resulting in plant growth and development.

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