carbohydrates

• are large molecules made up of simple sugar molecules
• simplest form of sugar molecules are monosaccharides
• ex. of monosaccharides: glucose, galactose, fructose
• when 2 glucose molecules are joined together, maltose is formed (disaccharide)
• ex. of disaccharide: sucrose, lactose
• when lots of glucose molecules join together, starch, glycogen or cellulose can form (polysaccharides)