Aerobic & Anaerobic Respiration

• What are the two types of respiration?

  Aerobic and anaerobic respiration
• What is aerobic respiration?

  Respiration using oxygen
• Why is aerobic respiration considered efficient?

  It transfers energy from glucose effectively
• Where does aerobic respiration primarily occur?

  Inside mitochondria
• What are the equations for aerobic respiration?

  • Word equation: glucose + oxygen → carbon dioxide + water
  • Symbol equation: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
• What happens during vigorous exercise regarding respiration?

  Muscles start anaerobic respiration due to low oxygen
• What does "anaerobic" mean?

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

  Lactic acid
• Why does anaerobic respiration transfer less energy than aerobic respiration?

  Glucose isn't fully oxidised
• When is anaerobic respiration useful?

  In emergencies, like during exercise
• How does anaerobic respiration differ in plants and yeast?

  It produces ethanol and carbon dioxide
• What is the word equation for anaerobic respiration in plants and yeast?

  glucose → ethanol + carbon dioxide
• What is fermentation in yeast cells?

  Anaerobic respiration in yeast
• What is the significance of fermentation in the food and drinks industry?

  • Used to make bread
  • Produces alcoholic drinks like beer and wine
  • Carbon dioxide makes bread rise
• What role does carbon dioxide play in bread-making?

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

  Alcohol
• Compare aerobic and anaerobic respiration in terms of energy transfer.

  • Aerobic respiration: high energy transfer, uses oxygen
  • Anaerobic respiration: low energy transfer, does not use oxygen