GCSE Biology AQA Unit 2

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  • Created by: Georgina
  • Created on: 03-05-13 21:40
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  • Respiration
    • Anaerobic
      • Uses oxygen
      • Occurs during exercise
        • During excersise we breath heavily to take in enough oxygen to oxidise the lactic acid
          • Produces lactic acid
            • Lactic acid is poisonous
            • Caused muscle fatigue
            • Blood flowing through removes Latic acid
          • Untitled
      • Is the incompleate break down of glucose
        • Much less energy is released than during Aerobic
      • Produces lactic acid
        • Lactic acid is poisonous
        • Caused muscle fatigue
        • Blood flowing through removes Latic acid
    • Aerobic
      • Does not use Oxygen
      • Glucose reacts with oxygen
      • Produces H2O & Co2 as waste
      • Takes place continously in animals and plants
      • Glucose + Oxygen -> Carbon dicoxide + Water+ Energy
    • Definition: The process of transferring energy from food molecules
    • Involves a series of many small reactions
      • Each reaction is controlled by enzymes
    • Occurs in Mitochondria

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