Nitrogen Fixation and Nitrification Quiz
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Questions and Answers

Which process returns nitrogen to the atmosphere, completing the nitrogen cycle?

  • Denitrification (correct)
  • Nitrogen fixation
  • Assimilation
  • Nitrification

    • What is the importance of ammonification in the nitrogen cycle?

  • It converts ammonia into nitrite and then into nitrate, which plants can readily take up from the soil.
  • It incorporates nitrogen into biological tissues, essential for the growth and development of living organisms.
  • It provides plants with a form of nitrogen they can absorb and use for growth.
  • It returns nitrogen to the soil, making it available for reuse. (correct)

    • Which process involves the conversion of atmospheric nitrogen into ammonia or other compounds by nitrogen-fixing bacteria or through industrial processes?

  • Ammonification
  • Assimilation
  • Nitrification
  • Nitrogen fixation (correct)

    • What is the role of nitrifying bacteria in the nitrogen cycle?

    <p>To convert ammonia into nitrite and then into nitrate, which plants can readily take up from the soil.</p> Signup and view all the answers

    Which process involves the incorporation of nitrogen into biological tissues, such as proteins and nucleic acids, by plants and other organisms?

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

    What is the importance of nitrification in the nitrogen cycle?

    <p>Converts ammonia into nitrite and then into nitrate</p> Signup and view all the answers

    What is the role of denitrifying bacteria in the nitrogen cycle?

    <p>Converts nitrates into nitrogen gas or nitrous oxide</p> Signup and view all the answers

    What is the definition of ammonification in the nitrogen cycle?

    <p>The conversion of organic nitrogen compounds into ammonia and ammonium ions</p> Signup and view all the answers

    Which process converts atmospheric nitrogen into ammonia or other compounds by nitrogen-fixing bacteria or through industrial processes?

    <p>Nitrogen Fixation</p> Signup and view all the answers

    What is the importance of ammonification in the nitrogen cycle?

    <p>Converts organic nitrogen compounds into ammonia, making nitrogen available for reuse</p> Signup and view all the answers

    What is the definition of nitrogen fixation in the nitrogen cycle?

    <p>The conversion of atmospheric nitrogen into ammonia or other compounds</p> Signup and view all the answers

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