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nmdcat.online June 27, 2026

The primary reason glycogen is a more suitable storage carbohydrate for animals than starch is its

A. Lower degree of branching, leading to slower hydrolysis
B. Higher degree of branching, which allows for more rapid glucose release
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C. Higher solubility in lipids, making it easier to store in adipose tissue
D. More stable β-1,4 glycosidic linkage, preventing premature breakdown

📝 Explanation

Glycogen is more extensively branched than starch's amylopectin. Branching creates numerous terminal non-reducing ends. Glycogen phosphorylase can act on all these ends simultaneously, leading to a much faster release of glucose-1-phosphate to fuel the animal's high metabolic rate.

📖 Additional Information

  • Lower degree of branching, leading to slower hydrolysis
  • Higher degree of branching, which allows for more rapid glucose release
  • Higher solubility in lipids, making it easier to store in adipose tissue
  • More stable β-1,4 glycosidic linkage, preventing premature breakdown

Glycogen is more extensively branched than starch's amylopectin. Branching creates numerous terminal non-reducing ends. Glycogen phosphorylase can act on all these ends simultaneously, leading to a much faster release of glucose-1-phosphate to fuel the animal's high metabolic rate.

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