The exchange of gases as well as water vapour occurs through tiny pores called _ (i) _ present at the _(ii)_ surface of the leaf.

(i) stomata (ii) lower

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(i) lenticel, (ii) upper

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(i) stomata, (ii) upper

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(i) veins (ii) lower

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Solution

The correct option is A
(i) stomata (ii) lower

The exchange of gases as well as water vapour occurs through tiny pores called stomata present on the lower surface of the leaf. The positioning of the stomata on the lower surface of the leaf prevents the direct exposure of stomata to sunlight and checks excessive loss of water from the plants.

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Similar questions

Statement 1: Gaseous exchange in plants occur only from the dorsal side of leaves.

Statement 2: Tiny pores called stomata facilitate the gaseous exchange.

Statement 3: The gases exchanged are carbon dioxide and water vapour only.

Which of the following options are correct based on the statements given?

Statement 1: Gaseous exchange in plants usually occurs on the top side of leaves.

Statement 2: Tiny pores called stomata facilitate this exchange.

Statement 3: The gases exchanged are carbon dioxide and water vapour only.

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