Class: BE210
Group: 102_A4
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The purpose of this lab will be to
examine three buffers in the blood to estimate each buffer’s impact on
maintaining a constant blood pH of 7.4. The three main buffers
are hemoglobin, bicarbonate, and phosphate . Each buffer will be
examined individually to experimentally determine its buffering
capacity and pKa. Additionally, a sample solution mirroring the
contents of blood plasma will be created by combining the three buffers
and the three major plasma proteins (serum albumin, fibrinogen, and
gamma globulins). These components will be added in their
respective concentrations, as found in human blood plasma. This
sample's buffer capacities and pKa’s will then be compared to those of
the individual buffers. It is hypothesized that hemoglobin will
be responsible for the greatest amount of buffering in the blood,
followed by bicarbonate .