Explain how mono-, di- and polysaccharides differ.

Answer to this question needs to be very long but here is a short story.

Monosaccharide is a simple sugar consist only of one unit. They serve as building blocks for more complex carbohydrate forms.

For example:

Glucose Fructose Galactose Ribose and Deoxyribose - RNA, DNA and so on...

Disaccharides are a group of sugars composed of two monosaccharide groups linked together.

For example:

Maltose = Glucose + Glucose Sucrose = Glucose + Fructose Lactose = Glucose + Galactose

Polysaccharides are complex composed of numerous monosaccharides combined through the loss of water molecules.

For example:

Starch Amylopectin Glycogen ...