Understanding Carbohydrate Structures and Functions

In the study of organic chemistry, understanding the structure and function of biomolecules is essential. One type of biomolecule that plays a crucial role in biological systems is carbohydrates, which are composed of sugar molecules. These carbohydrates can be classified into different categories, including monosaccharides, disaccharides, and polysaccharides. Each type is distinguished by the number of sugar units they contain and their functional roles in living organisms.

Glucose is an example of a monosaccharide, while sucrose serves as a common disaccharide formed from glucose and fructose. Polysaccharides, such as starch and glycogen, are made up of long chains of monosaccharides and serve as energy storage or structural components in cells.

Given this information, which of the following statements about carbohydrates is true?