ed by the beta cells within the islets of Langerhans of the pancreas.B)It is a hormone that is secreted when blood glucose levels are high.C)As a hormone it inhibits both glycogen breakdown (glycogenolysis) and fat breakdown (lipolysis).D)The actions of glucagon are antagonistic to the actions of insulin.35The disease diabetes mellitus:A)It is characterized by fasting hypoglycemia and the presence