Amylopectin is a type of carbohydrate known as a polysaccharide, which is a large molecule made up of many sugar units. It is one of the two main components of starch, the other being amylose. Amylopectin has a branched structure, allowing it to store energy efficiently in plants. This branched structure makes amylopectin more soluble in water compared to amylose, which is linear. As a result, amylopectin is quickly broken down by enzymes in the body, providing a rapid source of energy. It is commonly found in foods like rice, potatoes, and corn.