NEET Botany Respiratory Quotient MCQ Question
Which combination of statements about the Respiratory Quotient (RQ) is correct?
The RQ is calculated as the volume of CO2 evolved divided by the volume of O2 consumed during respiration. When carbohydrates are the respiratory substrate, RQ equals 1.
The RQ can only be calculated for aerobic respiration. It remains constant regardless of the type of substrate used.
The RQ indicates the efficiency of fermentation processes only. It is not applicable to aerobic respiration.
An RQ greater than 1 indicates that more O2 is consumed than CO2 produced, which is typical for lipid metabolism.
Correct Answer
Detailed Explanation
The respiratory quotient (RQ) is defined as the ratio of CO2 evolved to O2 consumed and equals 1 when carbohydrates are fully oxidized, as stated in the NCERT context.
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