The Nitrogen Cycle Pimlico

10 Questions | Total Attempts: 76

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Nitrogen Cycle Quizzes & Trivia

Nitrogen cyclemade for a-level biology


Questions and Answers
  • 1. 
    How do animals obtain nitrogen?
    • A. 

      By fixing nitrogen from the atmosphere

    • B. 

      By ammonification

    • C. 

      By feeding and digesting plants

    • D. 

      By nitrification

  • 2. 
    Nitrogen in the atmosphere is fixated by:
  • 3. 
    Free-living bacteria turn nitrogen into:
  • 4. 
    Detrification involves removing this element
  • 5. 
    Mutualistic bacteria live where?
  • 6. 
    Ammonification is the production of ammonia from organic molecules that contain ammonium.  An example of these molecules could be:
  • 7. 
    Ammonium to nitrite is
    • A. 

      Oxidation

    • B. 

      Reduction

  • 8. 
    Nitrite to nitrate is
    • A. 

      Oxidation

    • B. 

      Reduction

  • 9. 
    When eutrophication occurs, there are more of this type of bacteria in the soil
  • 10. 
    Increased anaerobic denitrifying bacteria is a bad thing because
    • A. 

      More nitrogen is converted to nitrates

    • B. 

      More nitrates are converted to nitrogen

    • C. 

      More ammonium is produced

    • D. 

      More oxidation occurs

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