Maltose is a disaccharide formed from glucose and glucose. Which option correctly lists its components?

• A. Glucose and fructose
• B. Fructose and galactose
• C. Glucose and glucose
• D. Galactose and glucose

Answer: (C)

Maltose is a disaccharide made from two glucose units. It forms when one glucose is linked to another via an α-1,4-glycosidic bond, and digestion of starch yields maltose before breaking it down to glucose. Among common disaccharides, it pairs glucose with glucose, while others pair glucose with fructose or galactose. So the components are glucose and glucose.