William’s Words in Science
Page 12 or 405
Nitrogen Cycle
+
nitrogen fixing bacteria:
N2
NH 4
cyano-bacteria:
N2
NH 4
decomposers
(bacteria and fungi)
nitrifying bacteria:
+
dentrifying bacteria:
–
N0 3
–
N0 2
–
amino acids
+
NH 4
–
N0 2
+
NH 4
N0 3
–
N0 2
+
NH 4
–
N0 3
N2
nitrogen in the air
ammonia manufacturer
NH4 NO3
nitogen-fixing
bacteria in soil
N2
nitrogen-fixing
bacteria in nodules
dentrifying
bacteria
decomposer
(bacteria & fungi)
cyano-bacteria
denitrifying bacteria
nitrifying bacteria
nitrifying bacteria
fossil fuels
decomposer
(bacteria and fungi)
All cells (bacterial, fungal, animal and plant) will contain nitrogen
as proteins and nucleic acids
William’s Words in Science
Page 12 or 405
Nitrogen Cycle
+
nitrogen fixing bacteria:
N2
NH 4
cyano-bacteria:
N2
NH 4
decomposers
(bacteria and fungi)
+
dentrifying bacteria:
–
N0 3
–
N0 2
amino acids
–
N0 2
+
NH 4
–
N0 3
+
NH 4
nitrifying bacteria:
+
NH 4
–
N0 2
N2
–
N0 3
nitrogen in the air
ammonia manufacturer
NH4 NO3
nitogen-fixing
bacteria in soil
N2
nitrogen-fixing
bacteria in nodules
dentrifying
bacteria
decomposer
(bacteria & fungi)
cyano-bacteria
denitrifying bacteria
nitrifying bacteria
nitrifying bacteria
fossil fuels
All cells (bacterial, fungal, animal and plant) will contain nitrogen
as proteins and nucleic acids
decomposer
(bacteria and fungi)