Consider the following statements about plants 1 A plant gains weight during ph...........

Science Affairs Botany

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Consider the following statements about plants

1. A plant gains weight during photosynthesis but loses weight during respiration.

2. Respiration is a continuous process whereas photosynthesis only occurs during daytime.

Select the correct answer using codes given below

Both 1 and 2 are correct

Both 1 and 2 are incorrect

Only 1 is correct

Only 2 is correct

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Explanation:

Both the statements are correct.
During respiration energy is given out. Carbon Dioxide is taken in and oxygen is given out. The liberation of oxygen out in the environment requires energy which is available in form of ATP.
Due to this energy has to be spent by the plant during liberation of oxygen. Due to this in respiration dry weight of plants decrease.
Respiration is essential for all living organisms and this includes plants. If respiration stops in a plant it will die, so plants constantly respire during the day and through the night. Respiration is a different process to photosynthesis, which depends on sunlight and therefore takes place only during the day.