Nitrogen cycle Flashcards
1
Q
nitrogen fixation
A
N2 into any other N product (NH3, NH4+, NO2-, NO3-)
2
Q
denitrification
A
NO2- to N2
3
Q
ammonification
A
NH2 to NH3 or NH4+
4
Q
nitrification
A
NH3 to NO2- to NO3-
5
Q
rhizobium
A
found in: leguminous plants
convert: N2 –> NH3
purpose: uses NH3 to make amino acids used by plants
6
Q
azotobacter
A
free living bacteria
converts: N2 –> NH3
purpose: uses NH3 to make amino acids
7
Q
pseudomonas
A
found: water logged soil
converts: NO2- or NO3- –> N2
8
Q
nitrosomonas and nitrobacter
A
converts: NH3 –> NO2- –> NO3-
