The Nitrogen Cycle Pimlico
10 Questions
| Total Attempts: 78
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
Nitrogen is one of the primary nutrients critical for the survival of all living organisms. Although nitrogen is very abundant in the atmosphere. Take this short quiz to find out how much do you know about it.
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Sample QuestionApproximately ___ % of the worlds atmosphere is comprised of Nitrogen.
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