Question

which of the following is true?
sucrose is made of one glucose molecule and one fructose molecule.
fructose is made of one glucose molecule and one sucrose molecule.
sucrose is not made of glucose and fructose molecules.
glucose is made of one fructose molecule and one sucrose molecule.

Explanation:

Sucrose is a disaccharide. It is formed by the condensation of one glucose molecule and one fructose molecule. Fructose is a monosaccharide and cannot be made of glucose and sucrose (as sucrose is a disaccharide). Also, the statement that sucrose is not made of glucose and fructose is wrong. Glucose is a monosaccharide and not made of fructose and sucrose.

Answer:

Sucrose is made of one glucose molecule and one fructose molecule.