A) where there is neither photosynthesis nor respiration.
B) when rate of photosynthesis is equal to the rate of respiration.
C) when entire food synthesized into photosynthesis remain utilized.
D) when there is enough water just to meet the requirements of plant.
Correct Answer: B
Solution :
[b] Compensation point is existed in morning and evening time. At this time the rate of photosynthesis (intake of\[C{{O}_{2}}\]) and rate of respiration (outcome of\[C{{O}_{2}}\]) is equal. At this point no exchange of\[C{{O}_{2}}\] is possible through stomata.
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