Glucose (from Greek glykys; “sweet”) is a monosaccharide and is also called a simple sugar. The molecular formula for glucose is C₆H₁₂O₆, which means its made of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms. It's a main source of energy in cell function and is important for metabolism. Glucose (also called dextrose) molecules can diffuse into cell molecules of plants, and animals. It's found in fruits and honey. Starch molecules consist of thousands of glucose units chemically bonded together. Starch is a carbohydrate and is an organic component that could be found in many foods. Everyday products such as bread, rice, potatoes, corn, and pasta consist of a large amount of starch (which is a long string of glucose).