Respiration pack 1

• What is the primary purpose of respiration in the body?

  To keep the body going by providing energy.
• What is cellular respiration?

  It is the process of transferring energy from the breakdown of organic compounds.
• Where does respiration occur in the body?

  In every cell of the body.
• What happens to energy during cellular respiration?

  Energy is transferred to the cell for various functions.
• What are the two types of respiration?

  Aerobic and anaerobic respiration.
• What is aerobic respiration?

  Aerobic respiration occurs when there is plenty of oxygen available.
• What is the equation for aerobic respiration?

  glucose + oxygen → carbon dioxide + water.
• What happens during anaerobic respiration in muscles during vigorous exercise?

  The body can't supply enough oxygen, leading to anaerobic respiration.
• What does anaerobic respiration produce in muscles?

  Lactic acid.
• What is the effect of lactic acid buildup in muscles?

  It causes pain and leads to fatigue.
• What is the word equation for anaerobic respiration in animals?

  glucose → lactic acid.
• How does anaerobic respiration in plants differ from that in animals?

  Plants produce ethanol and carbon dioxide instead of lactic acid.
• What is the word equation for anaerobic respiration in plants?

  glucose → ethanol + carbon dioxide.
• What are the key differences between aerobic and anaerobic respiration?

  • Aerobic respiration requires oxygen; anaerobic does not.
  • Aerobic respiration transfers more energy; anaerobic transfers much less.
  • Aerobic respiration produces carbon dioxide and water; anaerobic produces lactic acid (in animals) or ethanol and carbon dioxide (in plants).
• Why might aerobics classes be humorously suggested to be called anaerobics?

  Because anaerobic respiration occurs during vigorous exercise when oxygen is limited.
• What type of respiration is exothermic?

  Both aerobic and anaerobic respiration are exothermic.