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ICSE Class 7 Biology Question 16 of 16

Photosynthesis and Respiration — Question 5

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Question 5

Do the plants respire all day and night or only during the day? Give reasons.

Answer

Plants respire all day and night as plants require a constant supply of energy for all the different processes that go on inside the cells of the plant body. Energy is required for the growth of the plant, for root cells to penetrate the soil and absorb water and minerals and so many other such activities. Thus, Respiration occurs continuously in plants, during both day and night.