polysaccharides

Polysaccharides are large molecules made up of many sugar units linked together. They are a type of carbohydrate and include important substances like starch, glycogen, and cellulose. Starch is found in foods like potatoes and rice, and provides energy. Glycogen is how animals store energy in their muscles and liver. Cellulose is a key component of plant cell walls and gives plants structure; it's also found in dietary fiber, which aids digestion. Overall, polysaccharides play crucial roles in energy storage, structural support, and nutrition in both plants and animals.