Explain how $C O_{2}$ (as ${H C O}_{3}^{-}$ ) is an important component of buffer of blood which controls $p H$ .

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Solution

$C O_{2} + H_{2} O \to H_{2} C O_{3}$
Since carbon dioxide reacts with water to form carbonic acid, an increase in CO₂ results in a decrease in blood pH, resulting in haemoglobin proteins releasing their load of oxygen. Conversely, a decrease in carbon dioxide provokes an increase in pH, which results in hemoglobin picking up more oxygen.

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Explain how CO2 (as HCO−3) is an important component of buffer of blood which controls pH.

Explain how $C O_{2}$ (as ${H C O}_{3}^{-}$ ) is an important component of buffer of blood which controls $p H$ .