Question

Maltose, sucrose, fructose, lactose find odd one
Answer is fructose but state reason?

Answer 1

Fructose doesn't exist in the body it immediately breaks down to simpler substances while it is necessary for maltose, sucrose etc...

Answer 2

odd one out among the given sugars is fructose.

• The other sugars except fructose are dimers formed of 2 sugar units i.e. disaccharides.
• Fructose is the only monosaccharide among the given sugars. (1/ single unit of sugar)
• Maltose consists of 2 units of alpha-D-Glucose.
• Lactose consists of a beta galactose and a beta-D-glucose attached by a beta(1→4) glycosidic bond.
• Sucrose is the only non-reducing sugar as the functional anomeric carbon is involved in the glycosidic bond formation and is not free.
• Sucrose consists of glucose and fructose where C₁ of glucose is attached to C₂ of fructose by an ether bond called the "Glycosidic linkage".

• Fructose is also called fruit sugar as it is mostly found in fruits.