Electron Transport Chain and Oxygen in Cellular Respiration
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Questions and Answers

What is the final electron acceptor in the electron transport chain?

  • Oxygen (correct)
  • Water
  • Carbon dioxide
  • Glucose
  • Where does oxidative phosphorylation occur?

  • Endoplasmic reticulum
  • Cytoplasm
  • Mitochondria (correct)
  • Nucleus
  • What is the net ATP yield from one molecule of glucose during aerobic glycolysis?

  • 4 ATP
  • 8 ATP
  • 6 ATP
  • 2 ATP (correct)
  • Which molecule carries electrons to the electron transport chain?

    <p>NADH</p> Signup and view all the answers

    What is the product of the Krebs cycle?

    <p>CO2, NADH, FADH2, GTP</p> Signup and view all the answers

    What is the final acceptor of electrons in the electron transport chain?

    <p>Oxygen</p> Signup and view all the answers

    Where does the Krebs cycle occur in eukaryotic cells?

    <p>Mitochondrial matrix</p> Signup and view all the answers

    What is the main function of oxidative phosphorylation in cellular respiration?

    <p>To generate ATP using a proton gradient</p> Signup and view all the answers

    During aerobic glycolysis, what is the net yield of ATP from one molecule of glucose?

    <p>36 ATP</p> Signup and view all the answers

    Which molecule acts as a carrier for high-energy electrons during cellular respiration?

    <p>NADH</p> Signup and view all the answers

    Study Notes

    Electron Transport Chain

    • The final electron acceptor in the electron transport chain is oxygen.

    Oxidative Phosphorylation

    • Oxidative phosphorylation occurs in the mitochondria.

    Aerobic Glycolysis

    • The net ATP yield from one molecule of glucose during aerobic glycolysis is 36-38 ATP.

    Electron Carriers

    • Coenzyme Q (CoQ) carries electrons to the electron transport chain.
    • High-energy electrons are carried by flavin mononucleotide (FMN) and coenzyme Q (CoQ) during cellular respiration.

    Krebs Cycle (Citric Acid Cycle)

    • The product of the Krebs cycle is ATP, NADH, FADH2, and CoA.
    • In eukaryotic cells, the Krebs cycle occurs in the mitochondrial matrix.

    Oxidative Phosphorylation Function

    • The main function of oxidative phosphorylation in cellular respiration is to generate most of the ATP during aerobic respiration.

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    Description

    Test your knowledge of the electron transport chain and the role of oxygen in cellular respiration with this quiz. Explore concepts such as the loss and gain of hydrogen atoms, ATP production, and the stages of cellular respiration.

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