Question

if a plant is releasing co2 and taking in oxygen during the day does it mean that there is no photosynthesis justify in 150words

Answer 1

Answer—The photosynthesis and respiration takes place in day time. If a plant is releasing Co2 and taking O2 during day,that doesn't mean that photosynthesis is not occurring. Respiration releases Co2. Plants are living beings and metabolism constantly ‘burns’ food taking oxygen and releasing carbon dioxide. If plants give out carbon dioxide it is also possible that there is no breakdown of carbon and water.So ,it is not correct to say that if plant releases carbon dioxide and takes in oxygen during day time, no photosynthesis is taking place.

Answer 2

Answer:

Carbon dioxide released during respiration comes out from the plant cells through various openings. The carbon dioxide required for photosynthesis is taken through stomata. So, even if a plant keeps on taking in oxygen and releasing carbon dioxide during the day, it does not mean that no photosynthesis is happening in the plant.

Similarly, plants carry out respiration throughout the day and night. Hence, they keep on emitting carbon dioxide all the time. Photosynthesis takes place only in the presence of light and hence, Oxygen is released by plants only during the day.

Explanation: