C_{3}-plants show optimum photosynthesis at | vedclass

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(B) $C_{3}$-plants exhibit optimum rates of photosynthesis under conditions of high $CO_{2}$ concentration. This is because $C_{3}$-plants are prone t

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High $CO_{2}$

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(B) $C_{3}$-plants exhibit optimum rates of photosynthesis under conditions of high $CO_{2}$ concentration. This is because $C_{3}$-plants are prone to photorespiration,a process where the enzyme $RuBisCO$ binds with $O_{2}$ instead of $CO_{2}$. By increasing the concentration of $CO_{2}$,the probability of $RuBisCO$ binding with $CO_{2}$ increases,thereby minimizing photorespiration and maximizing the efficiency of the Calvin cycle.

$C_{3}$-plants show optimum photosynthesis at

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