The first line of defense in protecting against pH change during exercise is
A)sodium bicarbonate levels in the blood.
B)hemoglobin levels in the blood.
C)intracellular buffers.
D)plasma bicarbonate.

Question

Quizplus · Accepted Answer

Intracellular buffers, such as proteins and phosphate compounds, play a crucial role in regulating pH changes during exercise by absorbing excess hydrogen ions produced from metabolic processes. Sodium bicarbonate and plasma bicarbonate can also help buffer pH, but they are not the first line of defense. Hemoglobin levels in the blood are not directly related to pH regulation during exercise.

The First Line of Defense in Protecting Against PH Change