AIIMS 2014 Botany Respiration MCQ Question
RQ (Respiratory Quotient) is defined as
volume of CO2 evolved = volume of O2 consumed
volume CO2 evolved / volume of O2 consumed
volume of CO2 evolved / volume of O2 consumed
volume of O2 evolved / volume of CO2 consumed
Correct Answer
Detailed Explanation
The correct answer is C) volume of CO2 evolved / volume of O2 consumed because the Respiratory Quotient (RQ) is a measure of the ratio of carbon dioxide produced to oxygen consumed during respiration. This ratio helps to indicate the type of substrate being metabolized for energy, with different values corresponding to the oxidation of carbohydrates, fats, or proteins. Options A and D are incorrect because they misrepresent the relationship between CO2 and O2, while option B is a notation error and not the definition of RQ.
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