Topic 6 - Aerobic/anaerobic

• Aerobic energy production takes place in the presence of oxygen
• Anaerobic energy is produced in the absence of oxygen
• Aerobic:

  • Equation: Glucose + Oxygen = Energy + carbon dioixde+ water
  • Oxygen present: Yes
  • Duration: Long
  • Intensity: Low
  • Sporting example: marathon running
• Anaerobic:

  • Equation: Glucose = Energy + latic acid
  • Oxygen present: No
  • Duration: Short
  • Intensity: High
  • Sporting example: 100m sprint
• Give positives and negatives of AEROBIC respiration

  Positives:

  • lots of energy can be produced this way and there are few harmful by-products created
  • can work for a long period of time

  Negatives:

  • takes time for oxygen to be delivered to the working muscles so we can't work at high intensities
• Give positives and negatives of ANAEROBIC respiration

  Positives:

  • energy can be produced quickly and can be used at high intensities

  Negatives:

  • latic acid is produced
• Say whether these sports use aerobic or anaerobic respiration:

  • 100m sprint =anaerobic
  • marathon = aerobic
  • long jumper = anaerobic
  • discus = anaerobic
  • XC skiing = aerobic