How is blood glucose levels controlled by the body (homeostasis) ?

Controlling high blood glucoseBlood glucose levels are important to control because glucose is our key source of energy in respiration. When blood glucose levels are too high, this is detected by the pancreas. The pancreas will release insulin, which makes our cells take up any excess glucose into our cells so it can be used for respiration. It also converts glucose into glycogen to be stored in the liver. If high blood glucose is not controlled, it can lead to diabetes.
Controlling low blood glucoseWhen blood glucose levels are too low, the pancreas detects it. The pancreas will release glucagon. Glucagon makes glycogen (that is stored in the liver) to be broken down to glucose. It also decreases how much respiration occurs so that we don't use the small amounts of glucose left in the blood. If we don't control low glucose levels, it can lead to not having enough energy.