Which of the following is a disaccharide?

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(A) Disaccharides are oligosaccharides formed by the condensation of two monosaccharide units.Lactose is a disaccharide composed of one molecule of $D

Vedclass · Accepted Answer

Lactose

Vedclass · Answer

(A) Disaccharides are oligosaccharides formed by the condensation of two monosaccharide units.Lactose is a disaccharide composed of one molecule of $D$-glucose and one molecule of $D$-galactose.Starch and cellulose are polysaccharides,while glucose is a monosaccharide.Therefore,lactose is the correct answer.

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