do plants require oxygen? why?
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Oxygen, for plants, is essential because it makes the process of respiration more efficient (known as aerobic respiration). Plant cells are respiring constantly. ... But, during times when they can't access light, most plants respire more than they photosynthesize, so they take in more oxygen than they produce.
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Explanation:
all plant cells need oxygen to live, because without oxygen they can't perform aerobic respiration (respiration is the process of breaking down food to get energy).
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