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The Nitrogen Cycle

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Ahmed Mohamed

on 13 September 2014

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Transcript of The Nitrogen Cycle

Nitrogen fixation
1. Naturally: Only prokaryotes (eg: Rhizobium) are capable of fixing nitrogen.This bacteria lives freely in the soil but and also in the roots of many species of plants, especially leguminous plants
Why Nitrogen?
Nitrogen is an essential element for all living organisms because of its presence in proteins and nucleic acids
The Nitrogen Cycle
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