Final answer:
Glycogen's evolutionary significance lies in its role as a form of energy storage for immediate use, helping maintain stable blood glucose levels and providing energy during periods of high demand in muscles.
Step-by-step explanation:
The evolutionary significance of glycogen production is primarily that glycogen provides energy storage for immediate use (option b). Glycogen is a polysaccharide of glucose and serves as the main storage form of glucose in the human body, particularly in the liver and muscle cells. The liver glycogen serves to maintain the blood glucose level and provides glucose to other cells, while muscle glycogen is used during vigorous exercise for glycolysis in the muscle itself. This stored form of glucose is critical for energy homeostasis and enables the body to maintain stable blood glucose levels between meals or during fasting.
Glycogen is the storage form of glucose in humans and other vertebrates, and is made up of monomers of glucose. It is a highly branched molecule usually stored in liver and muscle cells. Glycogen serves as an important energy reserve that can be quickly mobilized to meet a sudden need for glucose. When blood glucose levels rise too high, excess glucose can be converted to glycogen and stored in the liver.