Starch .

Starch is a polysaccharide made up of glucose molecules. It is found in many plants and serves as an energy reserve. It is composed of two polymers: amylose and amylopectin. Amylose is a linear molecule, while amylopectin is a branched molecule. Starch is used in food products such as bread, pasta, and rice. It is also used as a thickening agent in sauces, gravies, and puddings.