Glycogen:

Glycogen (C24H42O2 1), also known as liver sugar or glycogen, is an animal starch and a branched polysaccharide combined with glucose, and its glycoside chain is α-type. Polysaccharides stored in animals.

Starch:

Starch is a storage polysaccharide stored in cells in the form of starch granules during plant growth. It is especially rich in seeds, tubers, tubers and other organs.

Cellulose:

Cellulose is a macromolecular polysaccharide composed of glucose. Cellulose is the main structural component of plant cell wall, which is usually combined with hemicellulose, pectin and lignin, and its combination mode and degree have great influence on the texture of plant-derived food. However, the changes of plant texture in mature and post-mature stages are caused by the changes of pectin substances.