Aerobic and Anaerobic respiration

• What are the two types of respiration?

  Aerobic and anaerobic respiration
• What is aerobic respiration?

  Aerobic respiration is respiration using oxygen.
• Why is aerobic respiration considered the most efficient way to transfer energy from glucose?


  Because it fully oxidizes glucose to release energy.
• When does aerobic respiration occur?


  Aerobic respiration goes on all the time in plants and animals.
• Where do most reactions in aerobic respiration happen?


  Inside mitochondria.
• What are the word and symbol equations for aerobic respiration?


  • Word equation: glucose + oxygen → carbon dioxide + water
  • Symbol equation: $C_6H_{12}O_6 +$$6O_2 → 6CO_2 +$$6H_2O$
• What happens during vigorous exercise regarding respiration?


  The body starts doing anaerobic respiration when it can't supply enough oxygen to muscles.
• What does "anaerobic" mean?


  Without oxygen.
• What is produced during anaerobic respiration in muscle cells?


  Lactic acid is produced.
• Why does anaerobic respiration not transfer as much energy as aerobic respiration?


  Because glucose isn’t fully oxidized without oxygen.
• When is anaerobic respiration useful?


  In emergencies, such as during exercise.
• How does anaerobic respiration differ in plants and yeast compared to animals?


  It produces ethanol and carbon dioxide instead of lactic acid.
• What is the word equation for anaerobic respiration in plants and yeast cells?


  glucose → ethanol + carbon dioxide
• What is anaerobic respiration in yeast cells called?

  Fermentation.
• What is the significance of fermentation in the food and drinks industry?


  • Used to make bread
  • Produces alcohol in beer and wine
  • Carbon dioxide from fermentation makes bread rise
• What role does carbon dioxide play in bread-making?


  It makes bread rise.
• What is produced during the fermentation process in beer and wine-making?


  Alcohol is produced.