Most abundant extracellular buffer is: (A) Haemoglobin, (B) Plasma proteins, (C) Bicarbonate, (D) Phosphate
Answer is C. Bicarbonate buffer is rhe major buffer system in the body It is responsible for about 80%of extra cellular buffering Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:489,490,491