TREE PHYSIOLOGY
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During respiration plants exchange ____ with the atmosphere.
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oxygen
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gases
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water
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carbon dioxide
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Explanation:
Detailed explanation-1: -Plants take in oxygen and give out carbon dioxide during respiration.
Detailed explanation-2: -Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
Detailed explanation-3: -Gas exchange in plants is achieved by stomata and lenticels. The epidermis has tiny pores called stomata (singular, stoma) that control transpiration and gas exchange with the air. During the day when photosynthesis occurs, the oxygen released from the process is utilized for respiration.
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