Biochemistry Macromolecules Carbohydrates
Carbohydrates include sugars and starches. Examples of monosaccharides are glucose and fructose. Polysaccharides are long molecules made from many units joined together. Examples are starch, glycogen, and cellulose. Carbohydrates have a number of functions, but the most important is to act as a ready source of energy for the body's metabolism. By breaking the chemical bonds in carbohydrates, energy is released and can be used by the body.