Starch and sugars are both made from two different carbohydrates that are found in food. They are organic compounds, which are made up of carbon. Sugar is derived from sugar molecules grouped to form complex carbohydrates. Simple carbohydrates are made up of sugars, and complex carbohydrates come from starch and fiber. Sugar simple carbohydrates contain a single sugar molecule or two combined sugar molecules connected by a glycosidic bond. Simple sugars can be combined into two categories, and these include monosaccharides and disaccharides. Unlike sugar, starch lacks sweetness. Starch can be further divided into simple sugars., unlike sugar. Starch is the source of energy, and sugar is the direct energy source. Sugar is associated with foods such as cakes and ice cream, while starch is associated with bread.