Which of the following is normally the major source of hydrogen ions in the body? A)phosphoric and sulphuric acids formed during metabolism of dietary proteins B)lactic acid production by muscles during exercise C) carbonic acid generated from metabolically produced CO₂ D) natural acids found in foods, such as citric acid

Question

Quizplus · Accepted Answer

Carbonic acid generated from metabolically produced CO2 is the major source of hydrogen ions in the body. This is because carbon dioxide reacts with water in the body to form carbonic acid, which then dissociates into hydrogen ions and bicarbonate ions. This process is known as the carbonic acid-bicarbonate buffer system and helps to maintain the pH of the body fluids within a narrow range. The other options listed can also contribute to the production of hydrogen ions, but they are not the major sources.

Which of the Following Is Normally the Major Source of Hydrogen