Nitrogen Cycle Flashcards
1
Q
Nitrogen Fixation
A
N2 gas fixed to an available form. converted to NH3-. Blue green algae.
2
Q
Ammonification
A
most nitrogen is present in the soil as organic compounds.
these are decomposed by fungi and bacteria.
3
Q
Nitrification
A
amonium ions are oxidised to nitrite and then to nitrate.
4
Q
Monster Truck
A
Nitrobacter
Nitrosomonas
Nitrification
5
Q
Legumes
A
has rhizobium bacteria on their roots
puts N back into soil
6
Q
Precipitation
A
78% of N in the air. Rain has N
