It is a large, branched polymer of linked glucose residues (portions of larger molecules) that can be readily mobilized as an energy source, increasing the amount of glucose immediately available to the organism between meals and during muscular activity.
Glycogen
Glycogen is a stored sugar that is made available as the first energy source while exercising. It lasts for about 20 minutes. Then the body uses other sources of metabolism for energy. Glycogen is stored in the liver.
Breathing is a function of living things but not a living things itself.
The function of glycogen degradation is to export glucose to other tissues when blood glucose levels are low.
energy
Cells are the basic structure of living things, im not so sure about what you mean by basic function.
Cells are the basic structure of living things, im not so sure about what you mean by basic function.
glycogen
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cell
Your question is unclear but living things rely on non-living things to survive. Everything from rocks to build a shelter to minerals for our bodies to function are required.
Every cell is a living thing. The cell is the basic unit of structure and function of all living things.