Aerobic and Anaerobic respiration

• Aerobic respiration is respiration using oxygen and the most efficient way to transfer energy from glucose
• Aerobic respiration:

  Glucose + Oxygen ---> Carbon Dioxide + Water
• Anaerobic respiration is used when there's not enough oxygen. it's the incomplete breakdown of glucose which creates lactic acid
• Anaerobic respiration:

  Glucose -----> Lactic Acid
• Anaerobic respiration doesn't transfer energy nearly as much energy as aerobic respiration as the glucose isn't fully oxidised
• plants and yeast respire without oxygen as well but they produce ethanol and carbon dioxide instead of lactic acid
• Plant and yeast cells anaerobic respiration:

  Glucose -----> Ethanol + Carbon dioxide
• anaerobic respiration in yeast is called fermentation
• in bread making carbon dioxide from the fermentation allows the bread to rise