When lactose is digested by the human body, each lactose molecule is broken down into smaller molecules. To which of the following categories of molecules do these smaller molecules belong?

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Lactose is a disaccharide category of carbohydrates. On hydrolysis, it produces two monosaccharides glucose and galactose. The nonhydrolyzable group which is crystalline, sweet to taste, and has asymmetric carbon atoms is a monosaccharide. The group having a zwitter ion is an amino acid. They are used in making proteins. The group which is esters are lipids. Nitrogen is absent in monosaccharides.

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