Anaerobic

• Anaerobic


  Occurs without oxygen and releases less energy
• Anaerobic respiration in microorganisms

  Fermentation
• Anaerobic respiration


  Releases less energy than aerobic respiration but it does this more quickly
• Product of anaerobic respiration

  Lactic acid
• Lactic acid builds up in muscles

  Causes pain and tiredness, which can lead to cramp
• Anaerobic respiration


  glucose → lactic acid
• Fermentation


  Glucose → Ethanol + Carbon dioxide
• Fermentation


  Anaerobic respiration completed by some bacteria and fungi such as yeast
• Fermentation equation


  glucose → ethanol + carbon dioxide
• Yeast fermentation


  Occurs when bread and beer is made
• Ethanol


  Alcohol produced during fermentation, which evaporates away when bread is baked
• Carbon dioxide gas


  Trapped in bread makes it rise and gives beer its bubbles
• Aerobic respiration


  Occurs in the presence of oxygen and in most cells most of the time
• Aerobic respiration


  C6H12O6 + 6O2 → 6CO2 + 6H2O (glucose + oxygen -> carbon dioxide + water)
• Aerobic respiration


  Takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy