The Significance of Oxygen in Cellular Respiration Quiz
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Questions and Answers

What is the role of oxygen in cellular respiration?

  • Facilitating glucose breakdown into pyruvate
  • Initiating glycolysis in the cytoplasm
  • Directly producing adenosine triphosphate (ATP)
  • Serving as the final electron acceptor in the electron transport chain (correct)

    • What is the function of the electron transport chain (ETC) in cellular respiration?

  • Transporting oxygen into the mitochondria
  • Breaking down glucose into ATP
  • Producing glucose from pyruvate
  • Creating a proton gradient across the inner mitochondrial membrane (correct)

    • Where does oxidative phosphorylation take place?

  • Cytoplasm
  • Cell membrane
  • Mitochondria (correct)
  • Endoplasmic reticulum

    • Which stage of cellular respiration directly requires oxygen?

    <p>Oxidative phosphorylation</p> Signup and view all the answers

    What is the primary role of NADH and FADH2 in cellular respiration?

    <p>Donating electrons to the electron transport chain</p> Signup and view all the answers

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