If the hydrogen ion concentration in the blood increases,bicarbonate ions act as buffers by A)removing excess hydrogen ions from the plasma. B)releasing hydrogen ions into the plasma. C)dissociating into H+ and CO₃^-. D)combining with chloride ions. E)combining with hemoglobin.

Question

Quizplus · Accepted Answer

Bicarbonate ions in the blood act as a buffer system, which means they can either release or remove hydrogen ions (H+) as necessary to maintain the pH level. When the hydrogen ion concentration increases, bicarbonate ions will bind with them to form carbonic acid, which then breaks down into water and carbon dioxide, removing excess hydrogen ions from the plasma. Therefore, choice A is the best answer.

If the Hydrogen Ion Concentration in the Blood Increases,bicarbonate Ions