The pH of blood is affected by A)the reaction of CO₂ with H₂O to form carbonic acid. B)the ionization of aqueous carbonic acid to hydronium ions and the bicarbonate anions. C)the decrease of the blood pH due to the production of hydronium ions. D)the excretion of bicarbonate and ammonium ions from the kidneys. E)all of the above

Question

Quizplus · Accepted Answer

All of the given options affect the pH of blood. The reaction of CO2 with H2O, catalyzed by carbonic anhydrase enzyme, leads to the formation of carbonic acid, which then dissociates into bicarbonate and hydronium ions, affecting the pH. Additionally, the production of excess hydronium ions or reduction in the bicarbonate level due to excretion from the kidney can cause a decrease in pH, ultimately affecting the pH of the blood. Therefore, option E, i.e., all of the above, is the best choice.

The PH of Blood Is Affected by