In the body,which of the following substances might be used to buffer a strong acid such as HCl?

Question

Quizplus · Accepted Answer

Sodium bicarbonate (NaHCO3) is a common buffer in the body and often used to neutralize excess acid in the stomach. It can also act as a buffer in the blood by reacting with strong acids such as HCl to produce weaker acids and help maintain a stable pH. Hemoglobin is a protein in red blood cells that binds with oxygen, and H2CO3 (carbonic acid) is formed from the reaction between carbon dioxide and water in the blood, but neither is as effective at buffering strong acids as NaHCO3. Therefore, choice C, NaHCO3, is the best option for buffering a strong acid like HCl in the body.

In the Body,which of the Following Substances Might Be Used