Glycogen is a polysaccharide of glucose, serving as the primary form of carbohydrate storage in animals and fungi. It is synthesized and stored mainly in the liver and muscles, providing a readily available source of energy when glucose levels are low. This branched polymer facilitates quick glucose release through glycogenolysis, crucial for maintaining blood glucose homeostasis and supporting energy demands during physical activity or periods of fasting.
Glycogen meaning with examples
- During strenuous exercise, muscle glycogen is rapidly broken down to glucose, providing the fuel needed for intense muscle contractions. This glycogen breakdown contributes to improved athletic performance due to the immediate energy supply available.
- The liver plays a key role in regulating blood sugar by storing glucose as glycogen after a meal. It later releases the stored glycogen as glucose back into the bloodstream to maintain blood glucose levels between meals.
- Individuals with glycogen storage diseases experience defects in glycogen synthesis or breakdown, leading to the accumulation of abnormal glycogen or a lack of glucose supply. Medical intervention is often needed to handle these situations.
- Following a period of fasting, the body initiates glycogenolysis in the liver to release glucose, ensuring the brain and other vital organs receive a continuous supply of energy, which avoids or minimizes potential cognitive and metabolic dysfunction.
Glycogen Crossword Answers
12 Letters
ANIMALSTARCH