Question

An example of a polysaccharide used for energy storage in humans is a. cellulose. b. glycogen. c. cholesterol. d. starch.

Short answer

b. glycogen.

Step-by-step solution

Eliminate the options that are not polysaccharides

Cellulose, glycogen, and starch are polysaccharides, while cholesterol is not. Cholesterol is a lipid molecule. So, we can eliminate option c.

Eliminate the options that are not used for energy storage in humans

Cellulose is a structural polysaccharide found in the cell walls of plants, and humans cannot digest it. So, it does not have a role in energy storage in humans. We can eliminate option a. Starch is the primary energy storage polysaccharide in plants, but not in humans. Thus, we can eliminate option d.

Identify the correct option

The only remaining option is glycogen. Glycogen is the main energy storage polysaccharide in humans and is stored primarily in the liver and muscles. Therefore, the correct answer is: b. glycogen.