its kidney
The other way around. When blood glucose levels are low, the liver converts stored sugar, glycogen, into blood sugar, glucose. You can remember it this way: glyco-GEN GEN-nerates glucose.
Glycogen is the type of carbohydrate which our body uses for storage. It is normally stored in muscles. It is important as a 'reserve' source of energy for our body. When the blood glucose level decreases, insulin converts glycogen into glucose so as to bring it to the normal blood glucose level.
Glucose
Your body seeks to convert glucose to glycogen and glycogen to glucose based on hormonal signals that are secreted in response to an event. i.e. if you ate tons of sugary food, your body will secrete a hormone called insulin from the beta cells of the pancreas, so that glucose in the blood will be able to be stored as glycogen in the muscle cells.
When blood sugar levels are low the pancreas will secrete glucagon which will stimulate the liver to breakdown glycogen (our reserve sugar supply) and stimulate gluconeogenesis which is converting fats and proteins into glucose (blood sugar).
The liver works by producing bile and removing toxins from the blood. It converts glycose into glycogen and even keeps your body core temperature at 27 degrees celsius. It works with the stomach, gallbladder, and small intestines. If your liver fails, toxins build up in your blood stream and you almost certainly die (without a transplant of course).
liver glycogen
As blood glucose. But it is stored as glycogen in the liver.
The function of glycogen degradation is to export glucose to other tissues when blood glucose levels are low.
When blood glucose levels drop, it is vital for the body to help stabilize them prevent fainting. The body will take fat reserves and convert them to glucose to do this.
Diet & the liver (glycogen).
No. Insulin converts glucose into glycogen for storage in the body. Glucagon converts glycogen into glucose. (it's the various cells in the body that do the conversion in either case, insulin and glucagon are hormones that induce the shift in the metabolism.)