Question

which provides long - term energy storage?
glycogen, because it is a polysaccharide
glucagon, because it is a complex protein
glucose, because it is a monosaccharide
cellulose, because it is a complex carbohydrate

Explanation:

Glycogen is a polysaccharide stored in animals and humans in the liver and muscles for long - term energy. Glucagon is a hormone that raises blood glucose levels, not an energy - storage molecule. Glucose is a short - term energy source. Cellulose is a structural polysaccharide in plants and not used for energy storage in animals.

Answer:

glycogen, because it is a polysaccharide