Flashcards
Nitrogen cycle flashcards
Cards in this deck (12)
- 1Ammonium ions are oxidised to nitrite ions by what process?Nitrification
- 2By what two paths might ammonium-containing compounds in plants end up in saprobiotic microorganisms?Death and decay of the plant; feeding and digestion followed by death and decay of the consumer
- 3Free-living nitrogen-fixing bacteria fix atmospheric nitrogen to what?Ammonia
- 4Nitrite ions are oxidised to nitrate ions by what process?Nitrification
- 5Symbiotic nitrogen-fixing bacteria fix atmospheric nitrogen to what?Ammonium ions used in ammonium-containing compounds required by the plant (proteins and nucleic acids)
- 6What is denitrification?The reduction of nitrate ions to atmospheric nitrogen
- 7What type of bacteria convert nitrate ions to atmospheric nitrogen?Denitrifying bacteria
- 8What type of bacteria convert nitrite ions to nitrate ions?Nitrifying bacteria
- 9What type of bacteria convert nitrogen to ammonia?Free-living nitrogen fixing bacteria
- 10What type of bacteria convert nitrogen to ammonium ions used directly by plants to make organic compounds?Symbiotic nitrogen fixing bacteria
- 11What gas is released by the decomposition of ammonium-containing compounds by saprobiotic organisms?Ammonia
- 12By what process is ammonia produced from ammonium-containing organic compounds?Ammonification
Information
- Description
- A-Level Biology Flashcards on Nitrogen cycle flashcards, created by Stephen Cole on 04/10/2014.
- Created by
- Stephen Cole
- Views
- 14
- Rating