Hexose is (carbohydrate) a sugar or saccharide containing six carbon atoms while glucose is (carbohydrate) a simple monosaccharide (sugar) with a molecular formula of c6h12o6; it is a principle source of energy for cellular metabolism.
The most important monosaccharides in the human body are the pentose and hexose sugars. Pentose deoxyribose is part of our DNA. Glucose, which is a hexose, is blood sugar.
