Question

multiple - choice question
sucrose is a disaccharide composed of:
a glucose molecule & a fructose molecule
a glucose molecule & a cellulose molecule
two glucose molecules

Explanation:

Sucrose is a common disaccharide. By definition and chemical - structure knowledge, it is composed of one glucose molecule and one fructose molecule. Cellulose is a polysaccharide and not a component of sucrose, and two - glucose molecules form maltose, not sucrose.

Answer:

a glucose molecule & a fructose molecule