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प्रश्न
Which structure in a leaf is mainly responsible for gaseous exchange?
पर्याय
Xylem
Stomata
Phloem
Cuticle
MCQ
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उत्तर
Stomata
Explanation:
Stomata are small, tiny pores mostly found on the epidermis of plants. Each stoma is surrounded by a pair of specialised cells known as guard cells, which govern the aperture’s opening and closing. The cuticle aids in water retention, xylem and phloem facilitate transport, and stomata serve as the principal sites of gas exchange.
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