What happens to nitrogen that enters the body while breathing?

Answer 1

main ingredients in proteins

Answer 2

The lungs don't separate oxygen from nitrogen. The air enters the bloodstream as the oxygen/nitrogen mix breathed in. The oxygen gets used by the cells and replaced with carbon dioxide. The carbon dioxide/nitrogen mix is returned to the lungs and expelled.

Nitrogen in the bloodstream is the primary cause of what is known as "the bends" in divers. The rapid decrease in pressure caused by rising too fast from deep water causes nitrogen molecules to expand and accumulate in a diver's joints, causing extreme pain. Compression, an increase in pressure, is the only way to alleviate the bends, either by returning to a deeper depth or by spending time in a compression chamber.

Answer 3

Nitrogen is essential in the human body, it is needed to make up amino acids, which in turn make up proteins. It is also needed to make nucleic acids, which form DNA and RNA It is used to make carbohydrates. Without protein and DNA we would not be alive, both of which need nitrogen. It is essential for us.

Answer 4

By breathing. It's in the air.