The pH of the blood is maintained balancing the ratio of

Options

A. Lactic acid and pyruvic acid
B. `NaHCO_(3) and H_(2)CO_(3)`
C. `CO_(2)` and `H_(2)O`
D. Pyruvic acid and `H_(2)CO_(3)`

Answer

B

Explanation

Blood contains large amounts of carbonic acid, a weak acid and bicarbonate a base. Together they help maintain the blood pH at 7.4.