The primary buffer in the ICF is

Question

Quizplus · Accepted Answer

Proteins, such as hemoglobin, act as the primary buffer in the intracellular fluid (ICF), maintaining a stable pH by binding and releasing hydrogen ions. The phosphate buffer system and the bicarbonate buffer system are also present in the ICF, but they are not the primary buffers. Respiratory regulation is important in maintaining acid-base balance but is not specific to the ICF. The given choice, "H₂CO₃: HCO₃^- buffer system," is not a recognized buffer system.

The Primary Buffer in the ICF Is