α-1,6 Glycosidic Bonds in Branched Polysaccharides

Steps:

• Identify the bond as α-1,6 glycosidic, which links glucose monomers at branch points in polysaccharides.
• Recall that amylopectin and glycogen feature branches via α-1,6 bonds, while amylose is linear with only α-1,4 bonds.
• Note that starch comprises amylose (linear) and amylopectin (branched), so it contains α-1,6 bonds.
• Confirm amylase is an enzyme, not a polysaccharide, and lacks such bonds.

Why C is correct:

• Amylopectin, glycogen, and starch all contain α-1,6 glycosidic bonds due to their branched structures, as defined in carbohydrate polymer linkages.

Why the others are wrong:

• A includes amylase, an enzyme without glycosidic bonds.
• B includes amylose, which has only α-1,4 bonds and no branches.
• D includes amylase, which does not contain the bond.

Final answer: C