Identifying the polysaccharide from glucose linkages and structure

Steps:

• Examine the diagram for glycosidic bond type: alpha-1,4 and alpha-1,6 indicate branching.
• Confirm it's a glucose polymer, ruling out other sugars.
• Note the branched structure, typical of animal storage carbs.
• Match to glycogen, which has branches every 8-12 residues.

Why C is correct:

• Glycogen is a branched polymer of glucose with alpha-1,4 and alpha-1,6 linkages, matching diagrams of its structure for rapid energy release in animals.

Why the others are wrong:

• A. Amylose is linear with only alpha-1,4 linkages, lacking branches.
• B. Cellulose has beta-1,4 linkages, forming straight chains for plant support.
• D. Starch includes amylose (linear) and amylopectin (less branched than glycogen).

Final answer: C