Definition & key points of Nitrogen Metabolism

Nitrogen fixation The synthesis of organic nitrogenous compounds



from atmospheric nitrogen by certain microorganisms   is  called   biological nitrogen fixation.

Asym biotic organism The free living nitrogen fixing organisms are called are asymbiotic organisms.
Leghaemoglobin The nodule is pink in colour. The pink colour is due to the presence of pigment leghaemoglobin.

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  1. zahid hussain January 15, 2017

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