topic 14

• CO2 is transported in 3 ways:

  1. small amounts of CO2 gas are transported in the plasma
  2. some CO2 binds to proteins
  3. most CO2 is transported as bicarbonate
• CO2 is more soluble in the body fluids than O2
• CO2 diffuses out of the blood
• deoxygenated blood can carry more CO2 than oxygenated blood (Haldane effect)
• more CO2 can bind to the protein of hemoglobin to form carbaminohemoglobin (haldane effect)