Question:
Although much $CO_2$ is carried in blood, yet blood does not become acidic, because
Although much $CO_2$ is carried in blood, yet blood does not become acidic, because
Updated On: Aug 3, 2024
- $CO_2$ is absorbed by the leucocytes
- Oxygen combines with haemoglobin to form oxyhaemoglobin
- $CO_2$ transport and blood buffers play an important role in it
- it is continuously diffused through the tissues and is not allowed to accumulate
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The Correct Option is C
Solution and Explanation
Although much $CO_2$ is carried-in blood, yet blood does not become acidic. It is due to $CO_2$ transport and buffering action of blood. The main buffer present in the blood is bicarbonate (which is formed during $CO_2$ transport in the blood). Bicarbonates exist in equilibrium with carbonic acid which in turn can be converted to $CO_2$ and water.
${H2O + CO2 <=> H2CO3}$ ${ <=> H+ + HCO^{-}_3}$
${H2O + CO2 <=> H2CO3}$ ${ <=> H+ + HCO^{-}_3}$
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