If digestion of a carbohydrate results in equal amounts of glucose and galactose, this carbohydrate isprobably
A) sucrose.
B) maltose.
C) lactose.
D) cellulose.
E) glycogen.

Question

Quizplus · Accepted Answer

Lactose is a disaccharide composed of one glucose molecule and one galactose molecule. When lactose is digested, an enzyme called lactase breaks down the bond between the two sugars, resulting in equal amounts of glucose and galactose. Sucrose (A) is composed of glucose and fructose, maltose (B) is composed of two glucose molecules, cellulose (D) is a complex carbohydrate that humans cannot digest, and glycogen (E) is a polysaccharide composed of glucose molecules that serves as energy storage in animals.

If Digestion of a Carbohydrate Results in Equal Amounts of Glucose