Disaccharides and Polysaccharides

• Disaccharides


  Contain monosaccharide units bound together by a covalent bond known as glycosidic linkage
• Disaccharides


  • Sucrose
  • Lactose
  • Maltose
• Sucrose


  A disaccharide derived from the French word for sugar, "sucre"
• Lactose


  A disaccharide found in milk containing glucose and galactose, derived from the Latin word for milk "lact"
• Maltose


  A disaccharide containing two units of glucose, found in germinating grains, derived from the French word "malt"
• Carbohydrates contain 10 monosaccharide units or more and are called polysaccharides
• Polysaccharides


  • Starch
  • Cellulose
  • Glycogen
• Starch


  The stored form of glucose in plants, found in cereals, wheat, rice, corn and oats
• Cellulose


  The major component of the plant cell wall, composed of many monosaccharide units
• Glycogen


  The stored form of glucose in animals and humans, synthesized and stored mainly in the liver and muscles