Which disaccharide is composed of two glucose molecules?

Maltose is the disaccharide composed of two glucose molecules. It is formed through the condensation reaction of two glucose units, leading to the formation of a bond known as a glycosidic bond. Maltose can be found in various foods and is especially significant in the process of digestion, as it can be broken down into glucose units for energy.

Lactose, on the other hand, is composed of glucose and galactose, while sucrose consists of glucose and fructose. Fructose is a monosaccharide by itself and does not form a disaccharide with glucose. Understanding the specific composition of disaccharides is essential in nutrition, as it helps identify their sources and how they are metabolized in the body.