Question

A monosaccharide is

• A. Lactose
• B. Sucrose
• C. Ribose
• D. Maltose

Answer 1

Answer: (C)

Ribose

Monosaccharide is the simplest form of carbohydrate which is composed of carbon, hydrogen and oxygen. The basic formula of the monosaccharide is C${}_n$H${}_{2n}$O${}_n$. These are considered as simplest form of sugar. The monosaccharide which has free aldehyde or ketonic group are known as reducing carbohydrate. Two monosaccharide links to form disaccharide and more than two forms polysaccharide.

Ribose sugars are mainly found in RNA. The molecular formula is C${}_5$H${}_{10}$O${}_5$. It is a monosaccharide.

So, the correct answer is option C.