Proteins

4.3

Proteins

Consists of elements: carbon, hydrogen, oxygen and nitrogen.
Some contain phosphorus.
The monomer of proteins is an amino acid.
Two molecules of amino acids are linked through condensation, by forming a peptide bond, which known as a dipeptide.
The polymer of proteins is a polypeptide.
The polypeptide can be broken down into amino acids through hydrolysis.
Have several levels; primary (linear), secondary (pleated, helix), tertiary (3D-shaped) and quarternary (having two or more tertiary structures).