Which of the following statements are true/false?
(I) The blood transports carbon dioxide comparatively easily because of its highest solubility.
(II) Approximately 
of carbon dioxide is transported being dissolved in the plasma of blood.
(III) The carbon dioxide produced by the tissues, diffuses passively into the blood stream and passes into red blood corpuscles and react with water to form 
.
(IV) The oxyhaemoglobin 
of the erythrocytes is basic.
(V) The chloride ions diffuse from plasma into the erythrocytes to maintain ionic balance.
Text Solution
Verified by ExpertsA
transport in blood: Transport of 
by blood is must easier/simple than that of 
due to high solubility of 
in water. Most of the 
, i.e., 
of 
is transported as bicarbonate 
in blood. 
as carbaminohaemoglobin 
and 
of 
is dissolved in the plasma. 
produced by the tissues, diffuses passively into the blood plasma and reacts with water forming carbonic acid. The reaction occurs very rapidly inside RBCs because of the presence of enzyme carbonic anhydrase. Chloride shift: To maintain electro-chemical neutrality of plasma, many chloride ions diffuse from plasma into RBCs and bicarbonates pass out. The chloride content of 
increases when oxygenated blood becomes deoxygenated. This is termed as chloride shift or Hamburger shift. Haldane's effect: Oxygenated blood behaves as strong acid. More and more oxyhaemoglobin is formed in lungs, which releases 
, i.e., increasing the acidity of blood. This 
combines with bicarbonate forming carbonic acid and soon dissociates.
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