Exercise

• When exercising more energy is needed in muscles

  • breathing rate increases=more oxygen into bloodstream
  • heart rate increases
• If not enough oxygen - anaerobic respiration

  • Lactic acid builds up (glucose-> lactic acid)
  • = lactic acid makes muscles tired and dont contract efficiently
  • So body has to remove lactic acid from muscles and oxygen debt occurs
• Lactic acid when taken out of muscle is taken in bloodstream and taken back to liver and converted back to glucose WHICH ALL USES OXYGEN AND CAUSES OXYGEN DEBT