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Cellular Respiration. Energy For Cells . Cellular Respiration. Energy is released by breaking the bonds of food molecules (such as glucose) to make ATP from ADP ADP = adenosine diphosphate ADP + P i  ATP 2 types aerobic respiration anaerobic respiration. Aerobic Respiration.

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cellular respiration

Cellular Respiration

Energy For Cells

cellular respiration1
Cellular Respiration
  • Energy is released by breaking the bonds of food molecules (such as glucose) to make ATP from ADP
  • ADP = adenosine diphosphate
  • ADP + Pi ATP
  • 2 types
    • aerobic respiration
    • anaerobic respiration
aerobic respiration
Aerobic Respiration
  • respiration that requires oxygen
  • starts in the cytoplasm
    • glycolysis
  • moves to the mitochondria
    • Krebs Cycle
    • Electron Transport Chain
aerobic respiration2
Aerobic Respiration
  • C6H12O6 + 6O2 6CO2 + 6H2O
  • 38 ATP are produced per molecule of glucose
  • 2 ATP are used, so net ATP is 36
  • Some energy is lost as heat, so the actual number will be lower
  • exergonic reaction – energy is released
anaerobic respiration
Anaerobic Respiration
  • takes place in the absence of oxygen
  • Fewer ATP are produced – net ATP is 2
  • 2 types
    • Lactic acid fermentation
    • Alcoholic fermentation
lactic acid fermentation
Lactic Acid Fermentation
  • Enzymes break down a glucose molecule into two lactic acid molecules, transferring energy to ATP
  • C6H12O6 + 4ADP + 4Pi lactic acid + 4ATP
  • This process causes the pain in muscle fatigue
alcoholic fermentation
Alcoholic Fermentation
  • Enzymes break down a glucose molecule into two molecules of ethanol and two molecules of CO2, transferring energy to ATP
  • C6H12O6 + 4ADP + 4Pi 2 ethanol + 2 CO2 + 4ATP
  • This process is used…
    • to produce alcohol
    • in gasoline additives
    • baking
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