Identify the Correct Statement(s) $\mathrm { P } _ { \mathrm { O } _ { 2 } }$

Multiple Choice

Identify the correct statement(s) .

A) The presence of Hb keeps blood $\mathrm { P } _ { \mathrm { O } _ { 2 } }$ low and favors O? movement into the blood.
B) Hb can combine with O?, CO?, H+, and CO.
C) Hb unloads more O? in the presence of increased tissue acidity.
D) Hb buffers against changes in pH due to respiratory carbonic acid.
E) All of the statements are true.