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Chemical buffers of the body include the bicarbonate, phosphate, and protein buffer systems. Chemical buffers are single or paired sets (a weak acid and its salt) of molecules that act rapidly to resist excessive shifts in pH by releasing or binding H+.
Best Answer: One major buffer system of the body is to control the blood of the pH. This buffer system is composed of carbonic acid and the bicarbonate ion. When the blood becomes more basic than it should be, the carbonic acid is released, which bring the blood back up to the pH it should be. Also, when carbonic acid is used, it forms the bicarbonate ion after the hydrogen has been donated. The same applies when the blood becomes too acidic. The bicarbonate ion is released bringing the pH back up to where it should be and producing carbonic acid. Source(s):