cellular respiration

an overview of cellular respiration

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  • cellular respiration
    • If cellular respiration took place in just one step all of the energy from glucose will be released     and most of it will be lost so the cell needs to find a way to trap this energy by using it to make ATP
    • felling hungry is a sign that the body is lacking energy
    • Food provides the chemical energy the body need to grow and reproduce
    • Food molecule contains chemical energy that is released by the breaking down of chemical bonds in the food molecule
    • energy stored in food is expressed in units of calories (C)
      • a calorie is the energy needed to raise 1 gram of water 1 degree Celsius
    • cellular respiration is the process that releases energy from food in the presence of oxygen
      • oxygen + glucose --> carbon dioxide +water+energy
        • 6O2+C6H12O6---> 6CO2+6H2O+ energy


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