The Nitrogen Cycle- Biol 4

Beschreibung

A Levels Biology Quiz am The Nitrogen Cycle- Biol 4, erstellt von elizabethc2114 am 07/01/2015.
elizabethc2114
Quiz von elizabethc2114, aktualisiert more than 1 year ago
elizabethc2114
Erstellt von elizabethc2114 vor fast 10 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
Which stage of the nitrogen cycle converts nitrogen gas into nitrogen-containing compounds?
Antworten
  • Ammonification
  • Nitrification
  • Nitrogen-fixation
  • Denitrification

Frage 2

Frage
Which stage of the nitrogen cycle produces ammonia from organic ammonium-containing compounds?
Antworten
  • Ammonification
  • Nitrification
  • Nitrogen-fixation
  • Denitrification

Frage 3

Frage
Which stage of the nitrogen cycle is involved in the conversion of ammonium ions to nitrate ions?
Antworten
  • Ammonification
  • Nitrification
  • Nitrogen-fixation
  • Denitrification

Frage 4

Frage
Which stage of the nitrogen cycle involve denitrifying bacteria which convert soil nitrates into gaseous nitrogen?
Antworten
  • Ammonification
  • Nitrification
  • Nitrogen-fixation
  • Denitrification

Frage 5

Frage
What are the two main types of microorganisms that carry out nitrogen fixation?
Antworten
  • Saprobiotic bacteria
  • Free-living nitrogen-fixing bacteria
  • Denitrifying bacteria
  • Mutualistic nitrogen-fixing bacteria

Frage 6

Frage
What do free-living nitrogen-fixing bacteria do?
Antworten
  • Reduce gaseous nitrogen to ammonia, which they then use to manufacture amino acids
  • Turn ammonia into gaseous nitrogen, which they then use to manufacture amino acids

Frage 7

Frage
Mutualistic nitrogen-fixing bacteria live in nodules of roots and plants e.g. peas and beans
Antworten
  • True
  • False

Frage 8

Frage
Mutualistic nitrogen-fixing bacteria obtain fats from the plant and the plant acquires amino acids from the bacteria
Antworten
  • True
  • False

Frage 9

Frage
Soils must be well aerated to prevent the build-up of denitrifying bacteria
Antworten
  • True
  • False
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