B4- Aerobic and Anaerobic respiration

• What is the most efficient way to transfer energy from glucose?

  Aerobic respiration
• Why is aerobic respiration considered the most efficient method of energy transfer?

  Because it fully oxidizes glucose
• Where does aerobic respiration occur in plants and animals?

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

  • Word equation: glucose + oxygen → carbon dioxide + water
  • Symbol equation: C6H12O2 + O2 > CO2 + H2O
• What happens to muscles during vigorous exercise when oxygen supply is insufficient?

  They start doing anaerobic respiration
• What does "anaerobic" mean?

  Without oxygen
• What is produced during anaerobic respiration in muscles?

  Lactic acid
• What is the word equation for anaerobic respiration in muscle cells?

  glucose → lactic acid
• Why does anaerobic respiration transfer less energy than aerobic respiration?

  Because glucose isn't fully oxidized
• When is anaerobic respiration particularly useful?

  In emergencies, such as during exercise
• What do plants and yeast produce during anaerobic respiration?

  Ethanol and carbon dioxide
• What is the word equation for anaerobic respiration in plants and yeast cells?

  glucose → ethanol + carbon dioxide
• What is the term for anaerobic respiration in yeast cells?

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

  • Used to make bread
  • Produces alcoholic drinks like beer and wine
• How does fermentation contribute to bread-making?

  It produces carbon dioxide that makes bread rise
• What is the role of fermentation in beer and wine-making?

  It produces alcohol