Cellular Respiration

Grade 9 mind map for Cellular Respiration

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  • Created by: Miguel
  • Created on: 19-02-13 15:43
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  • Cellular Respiration
    • Chemical Energy and Food
      • Organisms get the energy they need from food. Energy stored in food is expressed in units called of calories.
        • calorie is the amount of energy needed to raise the temperature of 1 gram of water 1 degree Celsius.
          • The  Calorie (capital C) that is used in food labels is a kilocalorie, or 1000 calories.
      • Cells can use all sorts of molecules for food, including fats, proteins, and carbohydrates. The energy  stored in each of these macro molecules varies because their chemical structures, and there fore their energy-storing bods, differ.
    • Overview of Cellular Respiration
      • If oxygen is available, organisms can obtain energy from food by a process called cellular respiration. Cellular respiration is the process that releases energy from food in the presence of oxygen.
        • 6O2+C6H12O6---->6CO2+6H2O+Energy
          • Oxygen + Glucose---> Carbon Dioxide + Water + Energy
        • Oxygen + Glucose---> Carbon Dioxide + Water + Energy
        • If cellular respiration took place in just one step, all of the energy from glucose would be released at once, most of it would be lost in the form of light and heat.


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