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