1.

Assertion (A) In the day time, CO2 generated during respiration is used up for photosynthesis.Reason (R) There is no CO2 release during day. A. Both A and R are true and R is the correct explanation of A. B. Both A and R are true, but R is not the correct explanation of A C. A is true, but R is false D. A is false, but R is false

Answer»

In respiration, O2 is taken in and CO2 is released while in photosynthesis, CO2 is used up and O2 is released. Both photosynthesis and respiration occurs in plant during daytime. But the rate of photosynthesis is much more than rate of respiration. Thus there is no net release of CO2.



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