What type of molecules are made of hundreds of sugar molecules?

Polysaccharides are molecules made of hundreds of sugar molecules. They are one of the four primary macromolecules that make up living organisms along with proteins lipids and nucleic acids. Polysaccharides are carbohydrate molecules made up of repeating monosaccharides (simple sugars) linked together. Examples of polysaccharides include:

• Starch - a polymer of glucose molecules found in many plants
• Glycogen - an energy storage molecule found in animals
• Cellulose - a structural molecule found in plant cell walls
• Chitin - a structural molecule found in the exoskeletons of animals

Polysaccharides are important for providing energy and structure for all living organisms. They are also important for their ability to store energy for long periods of time.