Q. 25

Label the glucose and fructose units in the following disaccharide and identify anomeric carbon atoms in these units. Is the sugar reducing in nature? Explain.



Answer :

The given disaccharide is Sucrose (table sugar). Its molecule is comprised of two monosaccharides i.e. fructose and glucose. The bond between the two monosaccharide units is called glycosidic linkage.


The sucrose has no anomeric hydroxyl groups (free ketone or free aldehydic group) so it is classified as a non-reducing sugar.



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