Which one of the following acids is a derivative of carotenoids?
Correct answer: C. Abscisic Acid
- A. Indole-3 Acetic Acid
- B. Gibberellic Acid
- C. Abscisic Acid
- D. Indole Butyric Acid
Explanation
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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