Assertion : C_4 photosynthetic pathway is mor | vedclass

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(A) $C_4$ plants are more efficient than $C_3$ plants because they have evolved a mechanism to minimize photorespiration.In $C_4$ plants,the initial $

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) $C_4$ plants are more efficient than $C_3$ plants because they have evolved a mechanism to minimize photorespiration.In $C_4$ plants,the initial $CO_2$ fixation occurs in mesophyll cells via the enzyme $PEP$ carboxylase,which has a high affinity for $CO_2$ and does not bind with $O_2$.The $CO_2$ is then transported to bundle sheath cells,where it is released at a high concentration,ensuring that the enzyme $RuBisCO$ functions primarily as a carboxylase rather than an oxygenase.This spatial separation effectively suppresses photorespiration,making the $C_4$ pathway more efficient in terms of carbon fixation and energy utilization compared to the $C_3$ pathway.Therefore,both the Assertion and the Reason are correct,and the Reason is the correct explanation of the Assertion.

Assertion : $C_4$ photosynthetic pathway is more efficient than the $C_3$ pathway.
Reason : Photorespiration is suppressed in $C_4$ plants.

Similar Questions

Which of the following methods is responsible for $ATP$ production by green plant cells in the presence of sunlight?

Choose the correct sentence$(s)$ from the following:
$(i).$ In $C_4$ plants,the first $CO_2$ acceptor is $PEP$.
$(ii).$ Light energy is absorbed by $PS-II$ at $680 \ nm$ in the process of photosynthesis.
$(iii).$ The $P_{680}$ chlorophyll system is present in $PS-I$.

According to an estimate,how much carbon is fixed annually in the biosphere through photosynthesis?

Statement-$I$: When $PS-II$ is functional,the electron is circulated within the photosystem and photophosphorylation occurs due to the cyclic flow of electrons.
Statement-$II$: The stroma lamellae membranes lack $PS-I$ as well as $NADP$ reductase enzyme.

Leaf photosynthates are transported to other parts of higher plants through

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Assertion : $C_4$ photosynthetic pathway is more efficient than the $C_3$ pathway.Reason : Photorespiration is suppressed in $C_4$ plants.