Which three of the following statements accurately describe the blood buffering

Question

Which three of the following statements accurately describe the blood buffering system in humans? The blood buffering system allows for varied pH values within a wide range. The blood buffering system maintains the pH of blood near 7.4. The blood buffering system involves the dissociation of H2CO3. The blood buffering system involves the ionization of H2PO4-. The blood buffering system involves the ionization of acetic acid. The blood buffering system is aided by the enzyme carbonic anhydrase, which interconverts carbon dioxide and water to bicarbonate and H+.

Explanation / Answer

4. The blood buffering system maintains the pH of blood near 7.4.

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