Chemical Constituents of Cells · NCERT Biology

Which of the following is an example of a secondary metabolite that is used as a drug?

  1. Carotenoids
  2. Vinblastine
  3. Abrin (toxin)
  4. Ricin (toxin)
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Correct answer: Vinblastine

Vinblastine is a plant-derived secondary metabolite from Catharanthus roseus used as an anticancer drug that inhibits cell division. Abrin and ricin are plant toxins, while carotenoids are accessory pigments.

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