1. The Nitrogen Cycle Nitrogen gas (N2)
Plants Make Amino Acids with Nitrates
Animals Make Proteins by consuming
Soil Bacteria
Waste
Ammonia (NH3) Ammonium (NH4+)
Soil Bacteria
Nitrite NO2-
Nitrate NO3-

2. Nitrification and Ammonification by Lightning

3. Human Impact

4. Eutriphication

5. Toxic Red Tide

7. Nitrogen Cycle WASTE (NH3) (NH4+) (NO2) Nitrite _NITROSOMONAS into
FOOD contains PROTEIN
Nitrogen is in the fish in the form of
PROTEIN__
NO3 is absorbed by the plant roots and made into
__________________________ that can be used in food
Nitrogen in the waste is in the form of
AMMONIA NH3
WASTE (NH3)
(NH4+)
Uneaten food is decomposed into Ammonia (NH3) by
BACTERIA
NO3 is eaten “decomposed by a bac3erial called
__NITROBACTER__ into
____NITRATE, NO3 ___
Ammonia is eaten “decomposed” by a bacteria called
_NITROSOMONAS into
NITRITE, NO2
(NO2)
Nitrite