Answer:
Are long chains of sugar units arranged to form starch or fiber.
Explanation:
The carbohydrates are compounds formed by carbon (C), hydrogen (H) and oxygen (O), and they are composed for single or multiple sugars. When composed by a single sugar (as glucose) it's called a simple carbohydrate, or monosaccharide. When it's composed of two units of sugar, it's called a disaccharide.
The carbohydrates that are composed of a long chain of sugar units are called polysaccharides, or complex carbohydrates, and they are the complex sugars used as energy reservations or as structural, so they from starch or fiber.
