Question

Some carbohydrates are classified as reducing sugars due to their ability to reduce other reagents. What features of a carbohydrate usually indicate that it is a reducing sugar

Answer 1

• An aldehyde exists in chain form.
• A ring-shaped hemiacetal exists.

Hemiacetal:

• A reducing sugar is one that reduce other compound and oxidized itself. A sugar can be called as reducing sugar if it has an aldehyde group in the open chain form or hemiacetal group in ring form.
• The hemiacetal consists of a hydrogen bonded to a "R-group," an alcohol, an ether, and a carbon. When an aldehyde and an alcohol interact, the hemiacetal is created.
• The chemistry of carbohydrates revolves around the interactions between hemiacetals and hemiketals. Carbohydrates are made up of long chains of the sugar units known as monosaccharides, much like proteins are long chains of amino acids and DNA and RNA are long chains of nucleotides.

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