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nmdcat.online June 27, 2026

The main structural difference between amylose and amylopectin, the two components of starch, is that amylopectin has a

A. Linear, unbranched structure of glucose linked by α-1,4 bonds
B. Highly branched structure due to the presence of α-1,6-glycosidic bonds
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C. Structure composed of β-1,4-linked glucose units only
D. Lower molecular weight and solubility compared to amylose

📝 Explanation

Amylose is a linear polymer of glucose with α-1,4 linkages. Amylopectin is a much larger, branched polymer that has both α-1,4 linkages in the straight chain and α-1,6 glycosidic bonds at the branch points approximately every 24-30 glucose units.

📖 Additional Information

  • Linear, unbranched structure of glucose linked by α-1,4 bonds
  • Highly branched structure due to the presence of α-1,6-glycosidic bonds
  • Structure composed of β-1,4-linked glucose units only
  • Lower molecular weight and solubility compared to amylose

Amylose is a linear polymer of glucose with α-1,4 linkages. Amylopectin is a much larger, branched polymer that has both α-1,4 linkages in the straight chain and α-1,6 glycosidic bonds at the branch points approximately every 24-30 glucose units.

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