PLANT PHYSIOLOGY
RESPIRATION IN PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Absorb more water and release more energy.
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Absorb more Carbon Dioxide and Release more Oxygen.
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Absorb more Oxygen and release more Carbon Dioxide.
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None of the above
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Detailed explanation-1: -At night, photosynthesis does not occur hence they take in oxygen and give out carbon dioxide. Therefore, it is said that during the daytime, plants take in carbon dioxide and give out oxygen, and during the night it is vice-versa.
Detailed explanation-2: -Plants release oxygen during the day in the presence of natural light through the process of photosynthesis. While at night, the plants uptake oxygen and release carbon dioxide, which is called respiration.
Detailed explanation-3: -But during night time, plants perform only respiration and no photosynthesis (since absence of sunlight). Thus concentration of CO2 released is higher during night time.
Detailed explanation-4: -During daylight hours, plants take in carbon dioxide and release oxygen through photosynthesis, and at night only about half that carbon is then released through respiration.
Detailed explanation-5: -Most plants release oxygen only during the day, when the sun can power photosynthesis.