Q11
The main buffer system of the human blood is
A.
H2CO3 - HCO3
AnswerB.
H2CO3 - CO32-
C.
CH3COOH - CH3COO-
D.
NH2CONH2 - NH2CONH+
Answer: Option A
Solution
Answer: Option A
Solution:
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).