Nitrogen CycleEcology section for Physical Science
Nitrogen Storage
•Nitrogen is stored in many ways ...
Nitrogen Storage
Nitrogen is found as nitrogen gas in the
atmosphere
Nitrogen Storage
Nitrogen is stored in the soil as NITRATES for plants to absorb and grow larger
Plants can only take in nitrogen in the form of
NITRATES
Nitrogen Storage
•AMMONIUM - found in the soil, formed when animals and plants decompose or produce waste
Nitrogen Storage
Plants store nitrogen in the form of PROTEINSAnimals store nitrogen in the form of PROTEINS too.PROTEINS make animals and plants bigger.
Nitrogen transfer
•Before nitrogen can move from one place to another, it has to be TRANSFORMED into the correct form...
Nitrogen transfer
NITRIFICATION - forming NITRATES for plants and
animals from different forms
Nitrogen gas => NitratesAmmonium => Nitrates
Nitrogen transfer
Nitrogen Fixing Bacteria in nodules of plant roots turn
nitrogen gas into NITRATES for plants
Nitrogen Transfer
Bacteria break down plant and animal waste into ammonium in the soil
Nitrogen transfer
DENITRIFICATION - when ammonium is transformed
into nitrogen gas and released into the
atmosphere
so let’s put it all together
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