- A about 0.7
- B exactly 1
- C above 1
- D exactly 2
Correct answer: A. about 0.7
Explanation: Fats need extra oxygen relative to the CO₂ produced, giving an RQ around 0.7.
Concept context
Glycolysis, the Krebs cycle, the electron transport chain, fermentation, and the respiratory quotient. The cellular energy-release counterpart to photosynthesis.