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Please explain,how gas exchang in roots,leaves and stems....pleasei really need help,,thanks?

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Please explain,how gas exchang in roots,leaves and stems....pleasei really need help,,thanks?

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  1. Ok, gas only exchange in the leaves. To be exact, the stomata on the underside of the leaves. The stomata takes in oxygen all the time to carry out respiration and takes in carbon dioxide only when sunlight is present, to carry out photosynthesis.

    Hope that helps.

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