H⁺ generated from CO₂ at the tissue level is
A)the major source of hydrogen ion in the body
B)normally buffered in transit between the tissues and the lungs by hemoglobin
C)responsible for the pH of venous blood being higher than the pH of arterial blood
D)both a and b
E)all of the above

Question

Quizplus · Accepted Answer

H+ generated from CO2 at the tissue level is both the major source of hydrogen ion in the body (option A) and normally buffered in transit between the tissues and the lungs by hemoglobin (option B). This buffering helps to maintain pH levels within a narrow range. However, this process does not affect the pH difference between venous and arterial blood (option C), which is primarily due to the differences in oxygen and carbon dioxide concentrations.

H⁺ Generated from CO₂ at the Tissue Level Is