<prompt> Enzyme inhibited by insulin isGlucokinasePFK-1Glycogen phosphorylaseGlycogen synthase  <response>: 3. Hypoglycemic Effect of INSULINE - i. Insulin lowers the blood glucose level by promoting utilization and storage. ii. Gluconeogenesis is inhibited by insulin by repressing the key enzymes, pyruvate carboxylase PC phosphoenol pyruvate carboxykinase PEPCK and glucose-6- phosphatase. iii. Insulin inhibits glycogenolysis by oring the inactivation of glycogen phosphorylase and inhibiting glucose-6-phosphatase. The net effect of all these three mechanisms, blood glucose level is lowered. REF: DM VASUDEVAN TEXTBOOK OF BIOCHEMISTRY, EIGHTH EDITION,PG.NO.,167. 