Glycogen is a polysaccharide that is used to store energy
The answer is: Animals and fungi
Glycogen is used as an energy store in animals and fungi, the basic building block of which is glucose. The liver and muscles play an important role in storing glycogen in the body. For all cellular functions, adrenaline secretion is the main stimulus for glycogen synthesis and regulation of its storage in the liver and muscles. When storing energy, glucose is converted into new, complex sugars into glycogen and is stored in the liver and muscles. If this process affects the body in any way, it may result in many diseases, such as liver enlargement. Therefore, glycogen serves as a saving source of energy, which is preserved when needed. Glycogen is used as a source of energy needed for muscle contraction, which is an essential part of muscle performance.
