How do elements such as carbon and nitrogen get moved through the living world?

The elements such as the carbon and nitrogen, will be able to get through the living world by doing their responsibilities using their capabilities that provide and benefit the living things. The carbon will be responsible for the gas exchange where human beings, plants and animals will benefit. While the nitrogen, will undergo to the process called nitrogen cycle that benefits microorganisms where it is a cycle that go through a process of biological and physical.