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Gas exchange in leaves mainly occurs through which structure?

Answer and explanation

Correct answer: Stomata

Gas exchange in leaves is mainly controlled by stomata, which are tiny pores usually found in the epidermis. Carbon dioxide diffuses inward for photosynthesis, while oxygen and water vapour can diffuse outward. Root hairs absorb water and minerals, veins transport materials, and flowers are reproductive structures. Therefore the structure responsible for the principal leaf gas exchange is stomata, making option A correct.

Related tags

StomataGas ExchangeLeavesLife ProcessesWorld Of LivingScienceClass 10 Mcq

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