Biological Molecules

• Common elements in living organisms

  Carbon

  Hydrogen

  Oxygen

  Nitrogen

  Phosphorus

  Sulphur
• Monomers

  • elements make up monomers
  • simplest repeating unit

  e.g: monosaccharides, amino acids
• Polymers

  • made if repeating polymers joined end to end in a process called polymerisation

  e.g: polysaccharides, polypeptides
• Condensation

  • two molecules combine
  • removal of water

  
• Hydrolisis

  • molecule breaks down
  • addition of water