Relevance: Body needs to make glucose for ATP production. (Energy production)Regulation:Both hormones insulin and glucagon are released from the islets of Langerhan in the pancreas.Insulin: Released from the beta cells of the pancreas and act mainly on the liver. Insulin decreases the amount of glucose in the blood. This stimulates glucose uptake by the liver. Glycogenesis occurs in order to convert glucose into glycogen (stored form of glucose) Note cell respiration rates can also be increased.Glucagon: Released from alpha cells of the pancreas and increases the amount of glucose. Gluconeogenesis increases which is the formation of glucose in liver and adipose which occurs due to the conversion of glycogen to glucose by glucagon. Note cell respiration rates can also be decreased.Diabetes:Diabetes mellitus is a metabolic disorder that results from a high blood glucose concentration over a prolonged period