Carbohydrate's I think.
Starch
Glycogen belongs to the carbohydrate group of food chemicals. It is a complex carbohydrate that serves as a storage form of glucose in animals, including humans. Glycogen is typically stored in the liver and muscles for energy.
glycogen.
collagen
Starch
Glycogen is a storage of carbohydrate in the muscles, because that is the way the body is made. To access glycogen, the body needs to get into active mode.
Storage of food in plants. As starch is insoluble and compact, it is the most ideal form for storage in plants. For animals, starch is a source of carbohydrate. Therefore source of energy.
Starch, Glycogen
Starch
The main storage carbohydrate in plants is starch. Starch is a polysaccharide made up of glucose units and is stored in various plant parts such as roots, tubers, seeds, and fruits for energy storage.
Animals store carbohydrate in the form of glycogen. This is the secondary storage tissue in animals after adipose tissue. Plants store carbohydrates in the form of starch.