Assertion- C4 pathway of CO 2 fixation is found in some tropical plants- Reason- In this pathway- CO 2 is fixed by 3 C compoundA- Both reason and assertion are true and the reason is the correct explanation for the assertion-B- Both the reason and assertion are true but the reason is not the correct explanation of the assertion-C- Assertion is true but the reason is false-D- Both the assertion and reason are false-

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C4/ Hatch and Slack Pathway

Assertion: C4...

Question

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

Both reason and assertion are true and the reason is the correct explanation for the assertion.

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Both the reason and assertion are true but the reason is not the correct explanation of the assertion.

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Assertion is true but the reason is false.

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Both the assertion and reason are false.

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Solution

The correct option is B Both the reason and assertion are true but the reason is not the correct explanation of the assertion.
C₄ pathway found in tropical angiosperms called as Hatch and Slack cycle. Here CO₂ is fixed by 3C compound (phosphoenol pyruvate, (PEP). This pathway reduced photorespiration.

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

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