Question

Why do organisms require nitrogen?

Answer 1

Organisms use nitrogen in:

1. Nitrogen is essential for all living things because it is a major part of amino acids.
2. Amino acids are the building blocks of proteins that form enzymes which carry out various enzymatic reactions.
3. Nitrogen is essential for plants and a significant component of proteins, which all animals need to grow, reproduce and survive.
4. The nitrogen cycle converts nitrogen into compounds that plants and animals can use.