The most impoant buffer in interstitial fluid:
The chemical buffer systems in the body - bicarbonate system, phosphate system, and the proteins. Bicarbonate buffer is quantitatively the most impoant buffer in ECF compament; it buffers non-carbonic acid. Hence, option B is correct. Intracellular proteins account for >70% of I/C buffering . Phosphate helps in intracellular buffering .
Phosphate
Bicarbonate
Histidine
Protein
Excretory System (Kidney, Bladder) Acid-Base Balance