Blood banks dispose of blood that has low levels of bisphosphoglycerate. What would be the probable reason for doing so?
A) Erythrocytes low in BPG do not unload CO2 very well.
B) A low BPG level causes acidosis of blood.
C) A decline in BPG level is accompanied by a decline in hemoglobin level.
D) Erythrocytes low in BPG do not load O2 very well.
E) Erythrocytes low in BPG do not unload O2 very well.
E
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In the reaction between HCl and Ca(OH)2, the product CaCl2 will be a salt.
Answer the following statement true (T) or false (F)
Baroreceptors detect changes in __________.
A. blood O2 levels B. stretch in arterial walls C. blood CO2 levels D. blood H+ levels
Helper T cells bind to antigen complexed with class II MHC proteins, while cytotoxic T cells bind to antigen complexed with class I MHC proteins
Indicate whether the statement is true or false.
Hormone receptor molecules may be ____ in order to change the target cell's sensitivity to a given hormone
A. increased in number B. decreased in number C. chemically altered D. moved E. increased in number, decreased in number and chemically altered