Biology of the Nitrogen Cycle

In biology, nitrogen undergoes a variety of oxidations and reductions that are performed in different ways by different organisms in their quest not only to meet their demand for nitrogen, but also to gain energy from growth and survival. These reactions make up the biological nitrogen cycle. Components of the N-cycle also affect life in other ways, which include contributing to global warming, the destruction of the ozone layer in the stratosphere and acting as constituents of acid rain.