CARBOHYDRATES
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.
Glycogen is the molecule stored in the liver for extra energy. When the body needs a quick source of energy, glycogen can be broken down into glucose to be used by the body's cells.
glucose-6-phosphatase is not found in the liver. it is found in the muscles
Insulin signals blood cells like liver and muscle cells. These are used to accelerate the conversion of glucose to glycogen that's stored in the liver. Glucagon attach themselves to liver cells telling them to convert glycogen to glucose and to release glucose into the blood.
Excess glucose is stored in liver cells and muscle cells in the form of glycogen. When blood glucose levels are high, insulin signals these cells to take up glucose and convert it into glycogen for storage. This glycogen can later be broken down back into glucose when energy is needed.
The hormone glucagon stimulates the liver to release glucose into the blood when glucose levels are low.
Liver glycogen can easily produce glucose by glycogenolysis and that can be used by local cells for respiration. but as muscle cells lack Glucose-6-phosphate , in muscle glycogen cannot get transferred to glucose and hence cannot be used locally.
Insulin is the hormone that promotes the storage of glucose by the liver. It signals liver cells to take up glucose from the bloodstream and convert it into glycogen for storage.
* Insulin - released by pancreas - encourages liver and muscle cells to absorb glucose from the blood; stimulates the conversion of glucose ----> glycogen in liver/muscle cells.
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