143
Question
CO2 is transported as
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Solution
The correct option is D Carbaminohaemoglobin, carbonic acid and dissolved in plasma
Blood is the medium of transport for oxygen and carbon dioxide. About 97 per cent of oxygen is transported by RBCs in the blood. The remaining 3 per cent of oxygen is carried in a dissolved state through the plasma. Nearly 20-25 per cent of carbon dioxide is transported by RBCs (carbaminohemoglobin), whereas 70 per cent of it is carried as bicarbonate (formed by dissociation of carbonic acid). About 7 per cent of CO2 is carried in a dissolved state through plasma.
Blood is the medium of transport for oxygen and carbon dioxide. About 97 per cent of oxygen is transported by RBCs in the blood. The remaining 3 per cent of oxygen is carried in a dissolved state through the plasma. Nearly 20-25 per cent of carbon dioxide is transported by RBCs (carbaminohemoglobin), whereas 70 per cent of it is carried as bicarbonate (formed by dissociation of carbonic acid). About 7 per cent of CO2 is carried in a dissolved state through plasma.
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5% of CO2 is dissolved in ___(i)____. Another form in which CO2 is transported is when it combines with hemoglobin and this form is called ___(ii)____hemoglobin. CO2 entering the erythrocytes reacts with water to form carbonic acid in the presence of ____(iii)_____. Carbonic acid is an intermediate step; it dissociates to form a hydrogen ion (H+) from the carbonic acid, leaving___(iv)____ dissolved in the blood.
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