alleryThe respiratory quotient (RQ) of fat respiration is approximately
A0.7 because fats need more O2
B1.0 because of equal exchange
C0.9 because of partial fat use
D2.0 in all fatty substrates
Answer & Solution
Correct answer: A. 0.7 because fats need more O2
Fats (highly reduced, H-rich) require more O2 to oxidise per CO2 generated
RQ ~ 0.7. Carbohydrates RQ ~ 1.0. Proteins RQ ~ 0.9. Organic acids can have RQ > 1.
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