<prompt> Which statement is false about covalent modification?It is reversibleIt is slower than allosteric regulationIt uses the same enzyme for activation and inactivationPhosphorylation is a common covalent modification  <response>: It uses different enzymes for activation and inactivation Enzyme which adds phosphate is protein Kinase Enzyme which removes phosphate is protein Phosphatase. ADDITIONAL INFORMATION ON COVALENT MODIFICATION Covalent modification is a long term regulation by hormones. It is slower than allosteric regulation. It is reversible. Covalent modification:- Phosphorylation dephosphorylation Most common Adenylation, uridylation ADP ribosylation methylation acetylation Enzyme Regulation by Covalent Modification 