Which three statements accurately describe the blood buffering system in humans? The blood buffering system utilizes the H.CO/HCO, conjugate acid/base pair. The blood buffering system maintains the pH of blood near 7.4. The blood buffering system depends on the ionization of H,PO, The blood buffering system utilizes the acetic acid/acetate conjugate acid/base pain The blood buffering system is facilitated by the enzyme carbonic anhydrase, which interconverts carbon dioxide and water to carbonic acid, ionizing into bicarbonate and H