Assertion :Photosynthetically $C_{4}$ plants are less efficient than $C_{3}$ plants. Reason: The operation of $C_{4}$ pathway requires the involvement of only bundle sheath cells.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is D Both Assertion and Reason are incorrect.
Photosynthetically C $_{4}$ plants are more efficient than C $_{3}$ plants, because these have Kranz anatomy. Bundle sheath chloroplast are larger agranal and without PS-II activity and perform C $_{3}$ cycle.

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Similar questions

Q. Given below are assertion and reason. Point out if both are true with the reason being a correct explanation (A), both true but the reason is not correct explanation (B), the assertion is true but the reason is wrong (C) and both are wrong (D).

Assertion.

C_{4}

photosynthetic pathway is more efficient than

C_{3}

pathway.
Reason. Photorespiration is suppressed in

C_{4}

plants.

In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion: The efficiency of $C_{4}$ plant is more than those of $C_{3}$ plant.
Reason : $C_{4}$ plants are more efficient in picking $C O_{2}$

Q. Assertion: C4 pathway of CO₂ fixation is found in some tropical plants,
Reason: In this pathway, CO₂ is fixed by 3 C compound

Q. Assertion :Photosynthetically C

_{4}

plants are less efficient than C

_{3}

plants. Reason: The operation of C

_{4}

pathway requires the involvement of only bundle-sheath cells.

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Assertion :Photosynthetically C4 plants are less efficient than C3 plants. Reason: The operation of C4 pathway requires the involvement of only bundle sheath cells.

The correct option is D Both Assertion and Reason are incorrect.Photosynthetically C4 plants are more efficient than C3 plants, because these have Kranz anatomy. Bundle sheath chloroplast are larger agranal and without PS-II activity and perform C3 cycle.

Assertion :Photosynthetically $C_{4}$ plants are less efficient than $C_{3}$ plants. Reason: The operation of $C_{4}$ pathway requires the involvement of only bundle sheath cells.

The correct option is D Both Assertion and Reason are incorrect.
Photosynthetically C $_{4}$ plants are more efficient than C $_{3}$ plants, because these have Kranz anatomy. Bundle sheath chloroplast are larger agranal and without PS-II activity and perform C $_{3}$ cycle.