Explain : Biological Nitrogen Fixation.
Explain : Biological Nitrogen ...
Question : Explain : Biological Nitrogen Fixation.
Definition: Reduction of nitrogen to ammonia by living organism is called boilogical nitrogen fixation. <br> Explanation: Very few living organism can utilise the nitrogen in the form `N_2`, available abundantly in the air. <br> Only certain prokaryotic species are capable of fixing nitrogen. Thus nitrogen is reduced into Ammonia. They are exclusively located in prokaryotic organisms. These microbes are called `N_2` fixers. <br> `N-= N to^(Nitrogenase) NH_3` <br> The nitrogen fixing microbes could be free living or symbotic e.g of free living nitrogen fixing aerobic microbes are Azotobacter and Beijernickia. While Rhodospirillum is anaerobic and Bacillus is free living. <br> A number of cyanobacteria such as Anabaena and Nostoc are also free living nitrogen fixers. <br> Symbiotic Biological Nitrogen Fixation: Several types of symbolic biological nitrogen fixing association are known. The most prominent among them is the legume bacteria relationship. <br> Species of rod shaped Rhizobium has such relationship with the roots of several legumes such as alfalfa, sweet clover, sweet pea, lentils, garden pea, broad bean, clover beans etc. <br> THe most common association on roots is as nodules. These nodules are small out growths on roots. The microbe, Frankia, also produces nitrogen fixing nodules on the roots of non leguminous plants (eg. Alnus). <br> Both Rhizobium and Frankia are free living in soil , but as symbionts can fix atmospheric nitrogen.
How is industrial nitrogen fixation different from biological nitrogen fixation ? Explain.
Nitrogen Fixation | | Biological nitrogen Fixation | | Abiological nitrogen Fixation
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Definitions Biological nitrogen fixation