Question

Which of the following are not secondary metabolites in plants?

• A. Morphine, codeine
• B. Vinblastin, curcumin
• C. Amino acids, glucose
• D. Rubber, gums

Answer 1

The correct option is C

Amino acids, glucose

The correct option is C.

Explanation of the correct option:

1. Secondary metabolites are substances that plants make but do not need for metabolic activities.
2. Amino acids refer to compounds having the primary nitrogen group and carboxyl groups.
3. Amino acids are essential for protein synthesis.
4. Glucose refers to a monosaccharide of simple sugar.
5. Glucose is required for the synthesis of energy.
6. As both are required for metabolic processes, they are not secondary metabolites.

Explanation of the incorrect options:

Option A:

1. Morphine and codeine are opioid drugs derived from the Opioid family.
2. Both compounds do not get involved in any metabolic process.

Option B:

1. Curcumin is a natural polyphenol product extracted from Rhizoma Curcuma longa.
2. Vinblastin is used as a chemotherapy drug.
3. Both the compounds are not involved in metabolic processes.

Option D:

1. Rubber is naturally produced, a waterproof, chemical compound formed due to the fluids of tropical trees.
2. Gums are referred to as polysaccharides and their derivatives.
3. Both the compounds are not involved in metabolic processes.

Final answer: Amino acids and glucose are not secondary metabolites in plants.