Respiration mindmap

  • Created by: Angela
  • Created on: 30-11-18 18:25
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  • Respiration
    • transferring energy from breakdown of glucose
    • Plant make glucose for this through photosynthesis
      • Animals produce glucose by breaking down biomass
    • happens continually
      • In every cell - because the energy transferred is needed to survive
    • Energy transferred cannot be used directly
      • ATP - stores energy which is used for:
        • making and breaking molecules
        • muscle contraction
        • active transport
    • cell can use glucose as a substrate but can also breakdown:
      • proteins
      • carbohydrates
        • to be used as substrates for the reaction
          • proteins
          • lipids
      • lipids
    • Cellular respiration = exothermic
      • consists of several different chemical reactions - which are controlled by enzymes
        • NOTE: Factors that affect enzymes will affect the rate of reaction
    • Aerobic
      • plenty of oxygen
      • Most efficient way to transfer energy
        • Produces more ATP molecules
          • 32 molecules per molecule of glucose
      • Eukaryotic
        • In mitochondria - contains the enzymes needed
      • Prokaryotic
        • cytoplasm
    • Anaerobic
      • Takes place in cytoplasm of animal and plant cells
      • In animals and some bacteria glucose is only partially broken down
        • Lactic acid formed as waste
        • Whilst plants and some microorganisms (e.g. yeast) :
          • produce ethanol and carbon dioxide instead of lactic acid


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