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nmdcat.online June 27, 2026

The property of glucose that makes it a reducing sugar is its ability to

A. Form glycosidic bonds with fructose
B. Polymerize into long, branched chains
C. Donate electrons to other compounds in a redox reaction
✓
D. Dissolve readily in plasma membrane lipids

📝 Explanation

A reducing sugar has a free aldehyde or ketone group that can reduce (donate electrons to) another compound, such as Cu²⁺ to Cu⁺ in Benedict's test. Glycosidic bond formation masks this group. Polymerization is a separate property, and glucose is lipid-insoluble.

📖 Additional Information

  • Form glycosidic bonds with fructose
  • Polymerize into long, branched chains
  • Donate electrons to other compounds in a redox reaction
  • Dissolve readily in plasma membrane lipids

A reducing sugar has a free aldehyde or ketone group that can reduce (donate electrons to) another compound, such as Cu²⁺ to Cu⁺ in Benedict's test. Glycosidic bond formation masks this group. Polymerization is a separate property, and glucose is lipid-insoluble.

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