Proteins make up greater than 50% of an organism's biomass
Most proteins end in "-lin"
Most enzymes end in "-ase"
Amino acids are the monomers of proteins
There are twenty different amino acids used to make proteins
Amino acids are comprised of a carboxyl end, amine end, alpha carbon, and r group
The Carboxyl end (COOH) acts as an acid because it can release a hydrogen ion
The Amine end (NH2) can act as a base by accepting a hydrogen ion
The Alpha carbon is the central carbon atom to which all of the other functional groups are attached
The R group is the only part that is different in the twenty different amino acids. They give amino acids their distinctive properties
Individual amino acids are bonded together by a covalent bond called a peptide bond
In order to create a peptide bond, the amino end of one amino acid is position to combine with the Carboxyl end of the second amino acid. The amino acids are joined during dehydration synthesis
Two amino acids bonded together are referred to as a dipeptide
A polypeptide chain is a long chain of amino acids joined together by peptide bonds