C_4 plants are more efficient in photosynthes | vedclass

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(D) $C_4$ plants are more efficient in photosynthesis because they have a mechanism to minimize photorespiration.In $C_3$ plants,the enzyme $RuBisCO$

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lower rate of photorespiration.

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(D) $C_4$ plants are more efficient in photosynthesis because they have a mechanism to minimize photorespiration.In $C_3$ plants,the enzyme $RuBisCO$ acts as an oxygenase in the presence of high $O_2$ concentrations,leading to photorespiration,which is a wasteful process that consumes energy and releases $CO_2$.$C_4$ plants possess a specialized anatomy called $Kranz$ anatomy,which separates the initial $CO_2$ fixation from the Calvin cycle.This spatial separation ensures that $RuBisCO$ always operates in a high $CO_2$ environment,effectively suppressing photorespiration.Therefore,the lower rate of photorespiration in $C_4$ plants makes them more photosynthetically efficient compared to $C_3$ plants.

$C_4$ plants are more efficient in photosynthesis than $C_3$ plants due to

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