Question

starch, glycogen, cellulose
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Explanation:

Starch, glycogen, and cellulose are all types of polysaccharides (carbohydrates) made up of glucose units. Starch is a storage polysaccharide in plants, glycogen is the storage polysaccharide in animals (like in liver and muscle cells), and cellulose is a structural polysaccharide in plant cell walls. So the common category or term that applies to all three is "polysaccharides" (or "carbohydrates" at a broader level, but polysaccharides is more specific to their molecular structure as long - chain carbohydrates).

Answer:

polysaccharides (or carbohydrates, with polysaccharides being more precise for these three)