Enzyme Classification 。Oxidoreductase Oxidation-reduction reactions 。Transferase Transfer functional groups 。Hydrolase Hydrolysis 。Lyase Removal of atoms without hydrolysis ·Isomerase Rearrangement of atoms ·Ligase Joining of molecules,uses ATP • Oxidoreductase Oxidation-reduction reactions • Transferase Transfer functional groups • Hydrolase Hydrolysis • Lyase Removal of atoms without hydrolysis • Isomerase Rearrangement of atoms • Ligase Joining of molecules, uses ATP Enzyme Classification