• Carbohydrates are made from Carbon, Oxygen and Hydrogen.
  • They are divided into 3 groups as monosaccharides, disaccharides and polysaccharides.
  • Monosaccharides are the simplest form of carbohydrates



  • Disaccharides are made out of two monosaccharides.
  • A glycosidic bond is formed between monosaccharides.
  • A water molecule is removed during the reaction hence this is referred to a as condensation reactions.



  • They are polymers. Monosaccharides combine through glycosidic bonds to form polysaccharides. Therefore, monosaccharides act as the polymers.
  • To become a polymer, a molecule has to fulfil 2 characteristics.
  • Glucose is the most common monomer which participates in the formation of polysaccharides.
  • Examples of Disaccharides -Sucrose: glucose + fructose, Lactose: glucose + galactose, Maltose: glucose + glucose




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