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BIO NMDCAT Carbohydrates
nmdcat.online June 27, 2026

Dextran, a polysaccharide used medically as a plasma volume expander, is composed of glucose units linked primarily by

A. β-1,4 glycosidic bonds
B. α-1,6 glycosidic bonds
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C. α-1,4 glycosidic bonds
D. β-1,3 glycosidic bonds

📝 Explanation

Dextran is a branched bacterial polysaccharide of D-glucose, with a backbone of α-1,6 glycosidic linkages and α-1,3 branch points. Its high molecular weight and colloidal osmotic properties make it useful for drawing fluid into the circulatory system.

📖 Additional Information

  • β-1,4 glycosidic bonds
  • α-1,6 glycosidic bonds
  • α-1,4 glycosidic bonds
  • β-1,3 glycosidic bonds

Dextran is a branched bacterial polysaccharide of D-glucose, with a backbone of α-1,6 glycosidic linkages and α-1,3 branch points. Its high molecular weight and colloidal osmotic properties make it useful for drawing fluid into the circulatory system.

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