Question

Ribose is a

• A. Monosaccharide
• B. Disaccharide
• C. Polysaccharide
• D. Heteropolymer

Answer 1

Answer: (A)

Monosaccharide

The basic formula of the carbohydrate is C${}_n$H${}_{2n}$O${}_n$. The monosaccharide which has five carbon atom are known as pentose. They have molecular formula C${}_5$H${}_{10}$O${}_5$. Ribose, fructose, and xylose are pentoses. RNA contains ribose sugar. It is a five-carbon sugar. It attaches to the nitrogenous bases at the first carbon atom. Ribose also forms an important component of ATP. Two monosaccharide combines to form the disaccharide. For example, sucrose.

A monosaccharide is linked in chain form to form polysaccharide. For example, starch.

A polymer derived from two or more different types of the monomer is known as heteropolymer. For example, proteins.

So, the correct answer is 'Monosaccharide'.