Question

What is the difference between fructose and glucose?

Answer 1

Glucose is a monosaccharide, also known as grape sugar. It is an aldohexose. Glucose is the preferred source of energy for our muscles and brain.

Fructose is naturally found in fruits and vegetables, primarily metabolized in our livers.  Via glycolysis, fructose is used to generate energy. However, fructose is also involved in lipogenesis, which is how fat is formed, unlike glucose. Fructose belongs to a group called ketose. Oligosaccharides are formed when fructose interacts with other monosaccharides. With the help of a glycosidic bond, Sucrose has a fructose molecule joined with a glucose molecule.

Answer 2

Glucose and fructose are absorbed directly into your bloodstream, while sucrose must be broken down first. Glucose is used for energy or stored as glycogen. Fructose is converted to glucose or stored as fat.