Proteins

Amino acid structure:

• All AA's have the same general structure - a carboxyl group (COOH) and an amino group (NH2) attached to a carbon atom.
• difference between different AA's - varible R group.

Structure of Amino Acid                                           Structure of Glycine 

• glycine is the smallest AA - the R group is a hydrogen atom.

Joining and breaking Amino Acids:

• Dipeptide - 2 AA joined together.
• Polypeptide - more than 2 AA joined together.
• Proteins - made up of 1 or more polypeptides.
• AA are linked…