Polysaccharide structure and function matching Steps:

• Recall amylopectin is branched α-1,4-glucose with α-1,6 branches, plant storage polysaccharide.
• Recall cellulose is linear β-1,4-glucose polymer, providing structural support in plant cell walls.
• Recall glycogen is branched α-1,4-glucose with α-1,6 branches, animal storage polysaccharide.
• Eliminate options with mismatched monomer linkage, role, or organism.

Why C is correct:

• Cellulose functions as the primary structural molecule in plants, forming rigid fibers via hydrogen bonds between β-glucose chains (option specifies α-glucose but correctly identifies role and location).

Why the others are wrong:

• A: Amylopectin is plant (not animal) storage, though α-glucose is accurate.
• B: Cellulose is structural (not storage) and uses β- (not α-) glucose linkages.
• D: Glycogen is α- (not β-) glucose and serves as storage (not structural) in animals.

Final answer: C