Ratio of volume of CO2 liberated to volume of O2 consumed is
A
CQCO2/O2
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B
RQCO2/O2
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C
MQO2/CO2
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D
PQO2/CO2
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Solution
The correct option is BRQCO2/O2 Ratio of volume of CO2 liberated to volume of O2 consumed is called respiratory quotient. R.Q. for carbohydrates is 1, for fats and proteins is <1 and for organic acids is >1. R.Q. measures the efficacy of the substrate to release energy for every molecule of oxygen it consumes.