Question

Which one of the following is a disaccharide?
\[ \text{Glucose, Lactose, Amylose, Fructose} \]

Hint:

Disaccharides are made up of two monosaccharides joined by a glycosidic bond. Lactose is an example of a disaccharide.

Answer 1

A disaccharide is a carbohydrate composed of two monosaccharide units joined by a glycosidic bond. Out of the options given:
- Glucose is a monosaccharide.
- Lactose is a disaccharide made up of glucose and galactose.
- Amylose is a polysaccharide made up of glucose units.
- Fructose is a monosaccharide.
Thus, Lactose is the disaccharide.