Which of the following is NOT an example of a polysaccharide?

Fructose is categorized as a monosaccharide, which is the simplest form of carbohydrate consisting of a single sugar molecule. Unlike polysaccharides, which are long chains of sugar units (such as glucose units), fructose does not fit this definition because it cannot be hydrolyzed into simpler sugars.

Polysaccharides, such as cellulose, glycogen, and starch, are formed by the polymerization of monosaccharides. Cellulose provides structural support in plant cell walls, glycogen serves as a form of energy storage in animals, and starch acts as an energy reserve in plants. Since fructose stands apart from these complex carbohydrates, it is correctly identified as the option that is not an example of a polysaccharide.