Cytochrome bd: Characteristics and Functions
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Questions and Answers

What is the main purpose of fermentation in anaerobic survival?

  • To convert pyruvate into lactate using oxygen
  • To allow the synthesis of ATP via substrate level phosphorylation (correct)
  • To prevent the build-up of pyruvate
  • To produce more ATP than oxidative phosphorylation

    • Which bacteria is an obligate fermenter according to the text?

  • Vibrio cholerae
  • Streptococcus Pyogenes (correct)
  • Mycobacterium tuberculosis
  • Fusobacterium nucleatum

    • How does fermentation differ from oxidative phosphorylation in terms of ATP production?

  • Fermentation produces more ATP
  • Oxidative phosphorylation leads to a lower ATP yield (correct)
  • Fermentation requires oxygen for ATP production
  • Oxidative phosphorylation occurs in anaerobic conditions

    • Which process involves the breakdown of glucose into pyruvate molecules?

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

    Why do obligate fermenters like Streptococcus Pyogenes carry out fermentation?

    <p>Due to the absence of genes for oxidative phosphorylation</p> Signup and view all the answers

    What is the end product when pyruvate is reduced during fermentation?

    <p>$lactate$</p> Signup and view all the answers

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