Which of the following is NOT one of the body's chemical buffering systems? a) hydrochloride b) protein c) bicarbonate d) phosphate

Answer:A

Explanation:

Buffers are molecules that resist fluctuations in pH by donating or accepting electrons with the introduction of more acids or bases to a solution.

Their general function in all living organisms is to maintain relatively constant blood plasma pH for effective biochemical reactions.

In living cells examples are;

Carbonic acid bicarbonate; buffer system to neutralise elevated hydrogen ion from high blood carbon dioxide

Protein buffer system; mopping of excess hydrogen ions by haemoglobin

Phosphate buffer system;, for neutralisation of excess hydrogen ions by releases of hydrogen phosphate ions

Therefore A is odd.