Question

Assertion : In woody plants, gaseous exchange occurs through lenticels. Reason : Lenticels are specialised cells found along with stomata on the stem of woody plants.

a) Both A and R are true and R is the correct explanation of A.

 

(b) Both A and R are true but R is not the correct explanation of A.

(c) A is true but R is false.

(d) A is false but R is true.

(e) Both Assertion and Reason are false.

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Answer 1

Answer:

The ans is option a)

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Answer 2

The correct answer is a) Both A and R are true and R is the correct explanation of A.

Gaseous exchange in plants:

• Stomata help in gaseous exchange in the leaves of the plants.
• In woody plants, a layer of dead cells is formed at the outer layer of the stem, cutting off its contact with the outer atmosphere.
• For gaseous exchange of the cells existing inside, lenticels are present.
• Lenticel is a lens-shaped opening facilitating the gaseous exchange in woody plants.

Thus, both assertion and reason are true. Additionally, reason correctly explains assertion.