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CO2 Transport: Carbaminohemoglobin
Of the CO2 that diffuses from the tissue cells:
• 93% diffuses into red blood cells, 23% of that combines with hemoglobin, while 70% is converted to bicarbonate ions
• 7% dissolves in plasma
Carbaminohemoglobin
•...

CO2 Transport: Carbaminohemoglobin

Of the CO2 that diffuses from the tissue cells:

  • 93% diffuses into red blood cells, 23% of that combines with hemoglobin, while 70% is converted to bicarbonate ions
  • 7% dissolves in plasma

Carbaminohemoglobin

  • Globin: Protein portion of the hemoglobin molecule
  • 23% of CO2 binds to globin to form carbaminohemoglobin
  • Carbaminohemoglobin forms in regions of high PCO2
  • Formation is reversible

In regions of lower PCO2 (lungs), CO2 dissociates from carbaminohemoglobin

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