Glucagon is a hormone created by the pancreas that signals the liver to release glucose when the blood sugar level is dangerously low by converting glycogen (glucose converted for long term "storage") into glucose in the process known as glycogenolysis. Insulin is the hormone created by the pancreas that tells the liver to convert excess glucose into glycogen when the blood sugar level is high in the process known as glycogenesis.
The liver and skeletal muscle store glucose as glycogen. The liver can make glucose from proteins and release it from glycogen to help keep blood glucose at a normal level when we are fasting.
Insulin causes the glucose in your blood to enter the cells for energy. It does not cause the liver to change glucose into anything. Your liver does, however, store extra sugar in the form of glucagon.
Liver cells store chains of glucose in a molecule called glycogen, while muscle cells store glucose in the form of glycogen as well. Glycogen acts as a reserve of energy that can be broken down into glucose when needed for energy production.
GLYCOGEN
GLYCOGEN
CARBOHYDRATES
Animals store excess glucose in their liver as a large compound called glycogen. Plants store extra glucose in their starch.
The largest store of glycogen in the body is found in the liver. The liver can store up to about 100 grams of glycogen, which can be broken down to provide glucose for energy when needed.
Animals store glucose-containing fragments in the form of glycogen, a complex carbohydrate. Glycogen is synthesized and stored mainly in the liver and muscles and serves as a readily available energy source that can be broken down to release glucose when needed for energy.
The islets of langerhaan in the pancreas release insulin to control glucose levels. All organs can store glucose as fat, but usually, normal body fat is easier to convert to glucose if the body needs it.
Insulin
the liver cells store energy in the form of ATP (adenine triphosphate molecule) a simpler form of energy produced by break down of glucose molecules!