Diabetes -Insulin (Biochemical role) The role of Insulin yrosine kinase receptors are the locks red blood cell in which the insulin bloodstream→ key fits Involved in signal B-adrenergic receptor transduction Extracellular (insulin hormone being Ist messenger) Epidermal growth Insulin receptor factor receptorDiabetes – Insulin (Biochemical Role) -Tyrosine Kinase receptors are the locks in which the insulin key fits - Involved in signal transduction (insulin hormone being 1st messenger)