comparison of gas exchange

Cards (2)

  • Terrestrial gas exchange Insects vs Mammals
    Similarities
    1. internal systems to reduce heat and water loss
    2. medium for gas exchange is air
    3. both are tubular systems
    4. 5 features of gas exchange
    5. rings to support trachea
  • Terrestrial gas exchange Insects vs Mammals
    Differences
    1. In humans the gases are exchanged with the blood. In insects the gases are exchanged directly with the body cells
    2. Insects have a faster system compared to humans
    3. Insects do not produce haemoglobin whereas humans do
    4. Humans can have a much larger volume than insects as the number of tubes that would be required to supply all cells limits their size