About 70% of the carbon dioxide is carried in blood as:
Correct answer: B. Bicarbonate
- A. Carbonate
- B. Bicarbonate
- C. Tricarbonate
- D. Carbonic anhydrase
Explanation
About 70 percent of CO2 is transported in the form of Bicarbonate ions.
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About Gaseous Exchange in Lungs
Gaseous exchange in the lungs occurs across the thin, moist alveolar and capillary surfaces, where oxygen and carbon dioxide diffuse down partial pressure gradients. The topic covers alveolar adaptations, ventilation, the role of haemoglobin in oxygen transport, carbon dioxide carriage, and the difference between external gas exchange and cellular respiration.
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