Cellulose

  • Created by: KateL18
  • Created on: 08-04-19 13:27
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  • Cellulose
    • plant cell walls
    • tough, insoluble, fibrous
    • straight chains of beta-glucose (joined by condensation reactions)
    • 60-70 cellulose chains= microfibrils, then macrofibrils
      • all embedded in pectin= cell walls
      • macrofibrils criss-cross for extra strength
    • structure helps with function
      • macs/mics =high tensile strength
        • because of glycosidic and hydrogen bonds
      • difficult to digest because glycosidic bonds
      • each cell needs strength for support because no skeleton
      • cell walls fully permeable
      • walls= high tensile strength so when turgid no bursting
        • turgid cells support each other

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