Topic: Biomolecules: proteins, carbohydrates, lipids, nucleic acids· Cell Structure and Function

Which of the following are not secondary metabolites in plants ?

1. Morphine, codeine

2. Amino acids, glucose

3. Vinblastin, curcumin

4. Rubber, gums

Doubtly Asked 30 Oct 2026 NEET UG 2021 Practice test neet Save WhatsApp Report

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Answer: 2. Amino acids, glucose

Secondary metabolites include alkaloids (morphine, codeine), terpenoids (vinblastin), pigments and drugs (curcumin), and polymeric substances (rubber, gums).

Amino acids and glucose are primary metabolites, so they are not secondary metabolites.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Which of the following are not secondary metabolites in plants ?

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