Both Glucose and Fructose are monosaccharides and hexose sugars (contain six carbons atoms). But structurally they are different as follows-
1) It is aldohexose. Its functional group is the aldehyde.
2) It forms a pyranose ring structure and forms a six-membered ring.
1) It is ketohexose, and its functional group is the ketone.
2) It forms a furanose ring structure and forms a five-membered ring
Lactose is a disaccharide carbohydrate and therefore on hydrolysis it breaks down in constituent monosaccharides β-D-Glucose and β-D-Galactose.
Rate this question :