Nitrogen Cycle Flashcards
1
Q
Nitrogen fixation
A
The reduction of nitrogen gas to ammonia
2
Q
Assimilation
A
Nitrogen is absorbed by plants and used to make proteins / DNA
3
Q
Denitrification
A
The reduction of nitrate ions into nitrogen gas
4
Q
Ammonification
A
The decomposition of amino acids in proteins by fungi and bacteria, releasing ammonia
5
Q
Nitrification
A
The 2-step oxidation of ammonium ions into nitrite ions and then nitrate ions
