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NEET UG BIOLOGY MCQ: RESPIRATION IN PLANTS
1
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Understanding
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Assertion (A): When carbohydrates are used as substrate and are completely oxidised, the RQ will be 1.
Reason (R): The respiratory quotient depends upon the type of respiratory substrate used during respiration.
Reason (R): The respiratory quotient depends upon the type of respiratory substrate used during respiration.
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Correct option: B
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
Option B is correct because while both the assertion and reason are true, the reason doesn't directly explain why the RQ is 1 when carbohydrates are completely oxidized; the RQ is 1 because the number of carbon atoms equals the number of oxygen molecules required for oxidation.
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