All living organic entities require nitrogen compounds for endurance. Sadly, a large portion of these organic entities can't ingest nitrogen from its most bountiful source — the environment. Climatic nitrogen comprises of N2 particles, which are extremely lifeless because of the solid nitrogen triple bond. In any case, a couple of organic entities can beat this issue through a cycle known as nitrogen obsession, delineated in Figure.

Nitrogen obsession is the interaction where life forms convert air nitrogen into naturally helpful synthetics. Until this point in time, the just known sort of natural life forms fit for nitrogen obsession are microorganisms. These living beings utilize compounds called nitrogenases, which contain iron and molybdenum. Large numbers of these microorganisms live in a cooperative relationship with plants, with the most popular model being the presence of rhizobia in the root knobs of vegetables. All living life forms require nitrogen. A couple of microorganisms can process air nitrogen utilizing nitrogen obsession.