Geographic Concepts. The Census Bureauâs urban-rural classification is fundamentally a delineation of geographical areas, identifying both individual urban areas and the rural areas of the nation.
Glycogen is a polysaccharide molecule stored in animal cells along with water and used as a source of energy. When broken down in the body, it is transformed into glucose, an important source of energy for animals. In animals, it plays a role similar to that played by starch in plants.
What is Glycogen? When we eat carbohydrates, our body changes it into a form of sugar called âglucoseâ that can be used for energy. The glucose, in turn, is changed to Glycogen, a form of sugar that can be easily stored by our muscles and liver. It is the predominant storage form of glucose and carbohydrates in animals and humans. While glycogen is indispensable to athletes, we have a very limited capacity to store it. For example, carbohydrates account for only about 1-2% of total bodily energy stores 1. Most of this is stored as glycogen in muscle (80%) and liver (14%), and about 6% is stored in the blood as glucose. Despite its limited storage capacity, glycogen is crucial for energy production at all levels of effort. At rest, muscle glycogen is used for about 15-20% of energy production.