Question

sucrose is made of which simple sugars?
glucose and fructose
fructose and galactose
galactose and cellulose
cellulose and glucose

Explanation:

Sucrose is a disaccharide. In biochemistry (a subfield of Biology, which is in Natural Science), sucrose is formed by the condensation of one glucose molecule and one fructose molecule. Fructose and galactose form lactose? No, lactose is glucose + galactose. Cellulose is a polysaccharide, not a simple sugar, so options with cellulose are incorrect. So the correct pair is glucose and fructose.

Answer:

A. glucose and fructose