Cellular Respiration - Cellular respiration Chemical Energy...

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Cellular respiration Chemical Energy & Food Food provides living things with the chemical building blocks that need to grow and reproduce Food molecules contain chemical energy that is released wanted chemical bonds are broken Energy stored and food is expressed in units of calories. A calorie is the amount of energy that is needed to raise the temperature of 1 g of water by 1°C. 1000 cal equals 1 kcal Cellular Respiration If oxygen is available organisms can obtain energy from food by a process called cellular respiration Symbol equation 6O2 + C6H12O6 -----> 6CO2 + 6H2O + ATP Word equation Oxygen + glucose -----> carbon dioxide + water + energy Stages 1.Glycolysis (in cytoplasm) -produces only a small amount of energy to ATP -Anaerobic 2.Krebs cycle citric acid cycle (in mitochondria) -a little more energy is generated from pyruvic acid to ATP -Aerobic 3.Electron transport chain (in mitochondria) -produces the bulk of the energy and cellular respiration by using oxygen a powerful electronic sector 32 ATP -Aerobic Oxygen and energy Pathways of cellular respiration that require oxygen are called aerobic= with oxygen Glycolysis is an anaerobic process = does not require oxygen nor does it rely on oxygen
The Process of Cellular Respiration 1.Glycolysis- sugar breaking Anaerobic It makes: 1.2 Pyruvic Acids 2.2 ATP -Gets glycolysis going -

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