Identify the correct statement with reference | vedclass

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(B) The transport of oxygen from the lungs to body tissues and $CO_{2}$ from tissues to the lungs is a vital role of blood.Transport of carbon dioxide

Vedclass · Accepted Answer

Haemoglobin is necessary for transport of oxygen and carbonic anhydrase for transport of carbon dioxide

Vedclass · Answer

(B) The transport of oxygen from the lungs to body tissues and $CO_{2}$ from tissues to the lungs is a vital role of blood.Transport of carbon dioxide: Most of the $CO_{2}$ that dissolves in blood plasma reacts with water to form carbonic acid:$CO_{2} + H_{2}O \rightarrow H_{2}CO_{3}$An enzyme,carbonic anhydrase,is present in RBCs,which accelerates the carbonic acid formation by about $5000$ times. About $70\%$ of the $CO_{2}$ received by blood from the tissues immediately enters into RBCs and is hydrated to carbonic acid. All carbonic acid in RBCs dissociates into hydrogen and bicarbonate ions. The $H^{+}$ ions mostly combine with haemoglobin to maintain the pH of blood $(7.4)$ in a steady state,whereas the bicarbonate ions diffuse from RBCs into the plasma. To maintain the electrostatic neutrality of the plasma,many chloride ions in turn diffuse from the plasma into RBCs. This is termed the chloride shift or Hamburger phenomenon.

Identify the correct statement with reference to transport of respiratory gases by blood?

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