Neutral polysaccharides that contain glucose include which of the following?

• A. Glycogen
• B. Starch
• C. Cellulose
• D. All of the above

Answer: (D)

Polysaccharides made from glucose can be neutral, meaning they don’t carry charged groups. Glycogen, starch, and cellulose are all polymers of glucose and lack acidic groups, so they’re neutral in character.

Glycogen is the animal storage form of glucose, highly branched with mainly α-1,4 linkages and α-1,6 branches. Starch serves as the plant storage form and consists of two components: amylose (mostly linear α-1,4) and amylopectin (branched with α-1,6 points). Cellulose is a structural plant polymer built from β-1,4 linkages, resulting in straight, rigid chains that form fibers and are not digestible by humans.

Because each of these is glucose-based and neutral, all of the above fit the description.