Cellular Respiration: Facultative Anaerobes and Pyruvate Oxidation
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Questions and Answers

What is the characteristic of facultative anaerobes?

  • They always require oxygen to make ATP
  • They can make ATP by alcoholic fermentation and switch to oxidative phosphorylation when exposed to oxygen (correct)
  • They can only make ATP by oxidative phosphorylation
  • They can only make ATP by glycolysis
  • What is the product of pyruvate oxidation?

  • 1 ATP, 2 CO2, 1 NADH
  • 2 ATP, 1 CO2, 1 NADH
  • 1 Acetyl CoA, 1 CO2, 1 NADH (correct)
  • 1 ATP, 1 CO2, 1 NADH
  • How many cycles of pyruvate oxidation are required to fully oxidize one glucose molecule?

  • 1 cycle
  • 3 cycles
  • 2 cycles (correct)
  • 4 cycles
  • What is the total number of CO2 molecules produced in the Krebs cycle?

    <p>4 CO2</p> Signup and view all the answers

    What is the reactant that combines with oxaloacetate to form citrate in the Krebs cycle?

    <p>Acetyl CoA</p> Signup and view all the answers

    What is the total number of NADH molecules produced in the Krebs cycle?

    <p>6 NADH</p> Signup and view all the answers

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