Assertion: C_4 pathway of CO_2 fixation is fo | vedclass

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(C) The Assertion is correct because the $C_4$ pathway is an evolutionary adaptation found in many tropical plants to minimize photorespiration.The Re

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If the Assertion is correct but Reason is incorrect.

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(C) The Assertion is correct because the $C_4$ pathway is an evolutionary adaptation found in many tropical plants to minimize photorespiration.The Reason is incorrect because,in the $C_4$ pathway,the primary $CO_2$ acceptor is a $3$-carbon compound called Phosphoenolpyruvate $(PEP)$,but the $CO_2$ is fixed into a $4$-carbon compound called Oxaloacetic acid $(OAA)$. The statement 'fixed by $3C$ compound' is misleading as it implies the product is $3C$,whereas the fixation process involves the $3C$ acceptor to form a $4C$ stable product.

Assertion: $C_4$ pathway of $CO_2$ fixation is found in some tropical plants.
Reason: In this pathway,$CO_2$ is fixed by $3C$ compound.

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Assertion: $C_4$ pathway of $CO_2$ fixation is found in some tropical plants.Reason: In this pathway,$CO_2$ is fixed by $3C$ compound.