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, such as citric acid, found in foods

Question

Quizplus · Accepted Answer

Carbonic acid is generated from the breakdown of CO₂ in the body, which is a byproduct of cellular respiration. This process is a major source of hydrogen ions in the body and contributes to the regulation of acid-base balance. A and B are sources of hydrogen ions, but they are not the major sources. While D is a source of acids in the diet, it is not a major source of hydrogen ions in the body.

Which of the Following Is Normally the Major Source of Hydrogen