Disaccharides and Their Formation

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Questions and Answers

Disaccharides are a carbohydrate in which two ______ are bonded together

monosaccharides

Monosaccharide + monosaccharide = ______ + H2O

disaccharide

In disaccharide formation, one of the monosaccharide reactants functions as a ______

hemiacetal

In disaccharide formation, the other monosaccharide functions as an ______

<p>alcohol</p> Signup and view all the answers

The bond in a disaccharide resulting from the reaction between the hemiacetal carbon atom –OH group of one monosaccharide and an –OH group on the other monosaccharide is called ______

<p>glycosidic linkage</p> Signup and view all the answers

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Study Notes

Disaccharides Formation

  • Disaccharides are a type of carbohydrate consisting of two monosaccharides bonded together.
  • The formation of disaccharides involves a dehydration reaction, where two monosaccharides react to form a disaccharide and water (H2O): monosaccharide + monosaccharide = disaccharide + H2O.
  • In this reaction, one of the monosaccharide reactants acts as a nucleophile.
  • The other monosaccharide reactant functions as an electrophile.
  • The resulting bond in a disaccharide is formed between the hemiacetal carbon atom –OH group of one monosaccharide and an –OH group on the other monosaccharide, and is called a glycosidic bond.

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