Answer:
The correct answer is A. A polysaccharide that is formed in the liver and skeletal muscle to store glucose is glycogen.
Explanation:
Glycogen is the energy reserve polysaccharide in animals, and is stored in the liver (10% of liver mass) and in muscles (1% of muscle mass) of vertebrates. In addition, small amounts of glycogen can be found in certain glial cells of the brain.
Thanks to the glycogen storage capacity, changes in osmotic pressure that free glucose could cause both inside the cell and in the extracellular environment are minimized.
When the organism or the cell requires an emergency energy supply, as in cases of tension or alertness, the glycogen degrades again to glucose, which is available for energy metabolism.
