Polypeptide chains comprised of more than 40 or 50 amino acids.
Proteins are made up of many smaller units called amino acids that are attached to one another by peptide bail bond, forming a long chain. You can think of a protein as a twine of beads where each bead is an amino acid. They do most of the work in cell and are required for the structure, function, of the body’s tissue and organs. Protein are shuffling up of hundreds or thousands of smaller building block called amino acids, which are attached to one another in long chains.