Question
Vincristine and vinblastine, two commercially important secondary metabolites from Catharanthus roseus, are examples of ______
The correct answer is
alkaloids.
Alkaloid Classification of Vincristine and Vinblastine
Vincristine and vinblastine are crucial secondary metabolites derived from the plant Catharanthus roseus.
These compounds are recognized and classified scientifically as alkaloids.
Identifying Alkaloids: Vincristine and Vinblastine
- Chemical Structure: Alkaloids are organic compounds characterized by the presence of nitrogen atoms, usually in a heterocyclic ring. Vincristine and vinblastine possess complex structures that include nitrogen atoms, fitting the definition of alkaloids.
- Source: While found in Catharanthus roseus, their chemical nature places them within the broad category of plant-derived alkaloids.
- Functionality: Their well-documented pharmacological actions, particularly as chemotherapy agents, are consistent with the bioactivity often associated with complex plant alkaloids.
Based on their structural and chemical properties, vincristine and vinblastine are definitively classified as alkaloids.
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Important Questions from Production of Secondary Metabolites
- Match the secondary metabolites (Column-I) with the corresponding plant species (Column-II).
Column-I Column-II P. Morphine 1. *Datura stramonium* Q. Pyrethrins 2. *Catharanthus roseus* R. Scopolamine 3. *Papaver somniferum* S. Vincristine 4. *Tagetes erecta* - Which of the following plant-based secondary metabolites belong(s) to the class of alkaloids?
- Which one of the following plant secondary metabolites is a natural insecticide?
Determine the correctness or otherwise of the following Assertion and Reason (r).
Assertion: The production of secondary metabolites in plant cell cultures is enhanced by the addition of elicitors.
Reason: Elicitors induce the expression of enzymes responsible for the biosynthesis of secondary metabolites.
- The pungency of mustard seeds is primarily due to secondary metabolites such as isothiocyanate and nitrile. The pungency is usually felt only when the seeds are crushed. This is because of
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