Question

Read the statements given below and choose the correct option-

Assertion: Resins and gums are stored in old xylem tissue in plants.

Reason: Resins and gums facilitate the transport of water molecules.

• A. Both assertion and reason are correct, but the reason is not the correct explanation for assertion.
• B. Both assertion and reason are correct, and the reason is the correct explanation for assertion.
• C. Both assertion and reason are incorrect.
• D. Assertion is correct but the reason is incorrect.

Answer 1

The correct option is D

Assertion is correct but the reason is incorrect.

The correct option is D.

Assertion statement:

1. Plant tissues exude secondary metabolites in the form of resins and gums.
2. They are released either in the normal course or under stressful conditions.
3. Stress can be biotic (attack by microbes) or abiotic (temperature, pressure, pH, etc.)

Reason statement:

1. Xylem primarily does not store metabolites (secondary) or waste materials.
2. The storage of excretory products or secondary metabolites is only a secondary function of the xylem.
3. Gums and resins are mostly soluble in organic solvents.
4. However, they are insoluble in water.
5. Therefore, they do not facilitate the transport of water molecules.

Final answer:

(D) Assertion is correct but the reason is incorrect.