In a plant organ which is covered by periderm and in which the stomata are absent, gaseous exchange takes place through

Aerenchyma

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Trichomes

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Pneumatophores

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Lenticels

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Solution

The correct option is B Lenticels
A lenticel is a porous tissue which possesses cells with large intercellular spaces in the periderm of the secondary organs and the bark of woody stems. It involves in the direct exchange of gasses between the internal tissues and atmosphere through the bark, which is otherwise impermeable to gasses.

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

Statement 1: Gaseous exchanges in plants usually occur on the top side of leaves.

Statement 2: Tiny pores called stomata to facilitate this exchange.

Statement 3: The exchange of water vapour and carbon dioxide takes place through stomata.

Gaseous exchange in plants takes place through ________.

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