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Plant Growth and Development question

2009 · Q3
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Plant Growth and Development question

2009 · Q3

NEETBiologyPlant Growth and DevelopmentMCQ+4 / −1
Which one of the following acids is a derivative of carotenoids?
  1. A
    Indole-3-acetic acid
  2. B
    Gibberellic acid
  3. C
    Abscisic acid
  4. D
    Indole butyric acid
View written solutionFree

Correct answer: C

Biosynthesis of abscisic acid (ABA) in most plants occur indirectly by degradation of certain carotenoids present in chloroplasts or other plastids. The biosynthetic pathway follow mevalonic acid pathway for their synthesis. The sites of synthesis are fruits, tissues, leaves, roots and seeds.

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