Assertion: Glucose is the favoured respiratory substrate.
Reason: When glucose is used as respiratory substrate and is completely oxidized, the RQ is 1.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
A.
If both assertion and reason are true and reason is the correct explanation of assertion.
The ratio of the volume of CO2 evolved to the volume of O2 consumed in respiration is called the respiratory quotient (RQ) or respiratory ratio.
RQ = Volume of CO2 evolved Volume of O2 consumed.
The respiratory quotient depends upon the type of respiratory substrate used during respiration. When carbohydrates are used as substrate and are completely oxidised, the RQ will be 1, because equal amounts of CO2 and O2 are evolved and consumed respectively.
C6H12O6 +6O2 6CO2 +6H2O+ Energy
RQ = 6CO26O2 = 1
