How does glucos differ from fructose?

Glucose and fructose are both simple sugars, or monosaccharides, but they differ in structure and metabolism. Glucose has a six-membered ring structure and is a primary energy source for the body's cells, rapidly raising blood sugar levels when consumed. Fructose, on the other hand, has a five-membered ring structure and is metabolized primarily in the liver, where it can be converted to glucose or stored as fat. These differences in structure lead to distinct physiological effects when they are ingested.