Carbon Dioxide Transport in Blood
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Questions and Answers

Which enzyme is responsible for the formation of carbonic acid in red blood cells?

  • Hydrogen ions
  • Carbon dioxide
  • Bicarbonate ions
  • Carbonic anhydrase (correct)

    • What happens to the hydrogen ions formed during the dissociation of carbonic acid in the blood?

  • They are buffered by haemoglobin (correct)
  • They combine with oxygen to form haemoglobinic acid
  • They combine with bicarbonate ions to form sodium bicarbonates
  • They combine with chloride ions to form potassium chloride

    • What is the role of the chloride shift or Hamburger phenomenon in the transport of carbon dioxide in red blood cells?

  • It releases carbon dioxide and water in the lungs
  • It combines chloride ions with potassium to form potassium chloride
  • It increases the acidity in the blood
  • It maintains the balance of ions on either side of the RBC membrane (correct)

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