Carboxyhaemoglobin
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Questions and Answers

Which part of haemoglobin does carbon dioxide combine with?

  • The iron part of haemoglobin
  • The heme part of haemoglobin
  • The globin part of haemoglobin (correct)
  • The oxygen part of haemoglobin
  • What determines the formation of carboxyhaemoglobin?

  • The concentration of carbon dioxide in the blood
  • The concentration of oxygen in the blood
  • The concentration of carbon dioxide in the tissues (correct)
  • The concentration of oxygen in the tissues
  • When does carboxyhaemoglobin release its carbon dioxide?

  • When the oxygen concentration is higher in the blood than tissues
  • When the PC02 is higher in the blood than tissues (correct)
  • When the PC02 is higher in the tissues than blood
  • When the oxygen concentration is higher in the tissues than blood
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