Oxidative phosphorylation and respiratory quotient Quiz
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5 questions, one answer each
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1. Where is ATP synthase found?
- A. In the mitochondrial matrix
- B. In the inner mitochondrial membrane
- C. In the cytoplasm
- D. In the outer mitochondrial membrane
2. What is the role of oxygen in oxidative phosphorylation?
- A. It is the final electron acceptor and forms water
- B. It is the substrate for ATP synthase
- C. It pumps protons across the inner membrane
- D. It is reduced to carbon dioxide
3. What is the RQ when carbohydrate is the only respiratory substrate?
- A. 0.7
- B. 0.8
- C. 0.9
- D. 1.0
4. What causes hydrogen ions to flow through ATP synthase?
- A. Active transport using ATP
- B. The pumping of electrons into the matrix
- C. The proton gradient across the inner membrane
- D. The diffusion of oxygen
5. An organism uses 30 cm³ of oxygen and produces 21 cm³ of carbon dioxide in the same time. What is the RQ?
- A. 1.43
- B. 0.70
- C. 0.30
- D. 0.51