Chapter 9 Respiration

• Respiration


  Process of using oxygen to release energy from glucose
• Respiration


  Process of using the energy released from glucose to power the cell
• Respiration


  1. Chemical reaction to break down glucose

  2. Release energy for the cell
• Aerobic respiration : Glucose + Oxygen -> Carbon dioxide + Water + Energy
• Oxygen


  Essential part of aerobic respiration, taken from the air
• Aerobic respiration


  • Happens in the mitochondria of cells
  • Exothermic reaction
• Anaerobic respiration


  When no oxygen is available, produces less energy
• Anaerobic respiration


  • Lactic acid production in muscles
  • Fermentation in yeast (glucose -> ethanol + carbon dioxide)
• Role of the liver in anaerobic respiration

  • Detoxifying substances
  • Breaking down old blood cells
  • Making bile for digestion
  • Creating urea from excess amino acids
  • Converting lactic acid from muscles back to glucose
• Anaerobic respiration in the liver converts lactic acid to glucose or stores it as glycogen