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BIO NMDCAT Carbohydrates
nmdcat.online June 27, 2026

The carbohydrate storage form in animals, glycogen, is characterized by a structure that is

A. Less branched than amylopectin, allowing for denser packing
B. More highly branched than amylopectin, allowing for more rapid mobilization of glucose
✓
C. Linear like amylose, but with a higher molecular weight
D. Composed of glucose units linked by β-1,4 glycosidic bonds

📝 Explanation

Glycogen is essentially the animal equivalent of amylopectin but is more extensively branched (branching every 8-12 residues). This extreme branching creates many non-reducing ends for glycogen phosphorylase to attack, enabling an extremely rapid release of glucose-1-phosphate to meet metabolic demands.

📖 Additional Information

  • Less branched than amylopectin, allowing for denser packing
  • More highly branched than amylopectin, allowing for more rapid mobilization of glucose
  • Linear like amylose, but with a higher molecular weight
  • Composed of glucose units linked by β-1,4 glycosidic bonds

Glycogen is essentially the animal equivalent of amylopectin but is more extensively branched (branching every 8-12 residues). This extreme branching creates many non-reducing ends for glycogen phosphorylase to attack, enabling an extremely rapid release of glucose-1-phosphate to meet metabolic demands.

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