Question

The main buffer system of the human blood is
A) H2CO3 B) H2SO4 C) CO2 D) O3

Answer 1

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Bicarbonate buffer

Bicarbonate buffer (HCO3–/CO2)

Bicarbonate buffer is the most important buffer system in blood plasma (generally in the extracellular fluid). This buffer consists of weak acid H2CO3 (pK1 = 6,1) and conjugated base HCO3– (bicarbonate).

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Answer 2

Answer:

Bicarbonate

Explanation: