Respiration

• Respiration is a chemical reaction that releases energy from glucose
• Energy is transferred in the form of ATP
• Aerobic respiration equation

  Glucose + Oxygen -> Carbon Dioxide + Water
• ATP produced from respiration can be used for

  • Thermoregulation
  • Cell division
  • Growth
  • Active transport
  • Muscle contraction
• Aerobic respiration:

  • Requires oxygen
  • Complete breakdown of glucose
  • Produce CO2 and H2O
  • Releases a lot of energy
• Anaerobic respiration:

  • Doesn't require oxygen
  • Incomplete breakdown of glucose
  • In animals produces CO2 and lactic acid
  • In plants and yeast produces CO2 and ethanol
  • Little energy is released
• Anaerobic respiration in animals:

  Glucose -> lactic acid
• Anaerobic respiration in plants and yeast:

  Glucose -> Ethanol + Carbon Dioxide
• Why is Lactic acid bad?

  It denatures enzymes in muscle cells
• When do we carry out Anaerobic respiration?

  During vigorous exercise when there is not enough oxygen delivered to our muscles