Statement A: The optimum $$CO2$$ concentration for photosynthesis in $$C4$$ plants is lower than $$C3$$ plants.Statement B: The optimum $$CO2$$ concentration for Rubisco activity for carboxylation is lower than that to PEP carboxylase activity.

Correct option is 1Statement A is correct and B is incorrect.

Questions

Statement A: The optimum CO₂ concentration for photosynthesis in C₄ plants is lower than C₃ plants.
Statement B: The optimum CO₂ concentration for Rubisco activity for carboxylation is lower than that to PEP carboxylase activity.

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detailed solution

Correct option is A

The optimum CO2 concentration for photosynthesis in C4 plants is 0.036 ppm and to that of C3 plants is 0.045 ppm. The optimum CO2 concentration for Rubisco activity is more than that of PEP carboxylase as the KM value of PEP carboxylase is lesser than that of Rubisco.

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