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21 Cards in this Set

  • Front
  • Back
in association & dissociation of oxygen & hemoglobin __% of oxygen in blood is associated with ____
98% - hemoglobin
the affinity of hemoglobin to oxygen is dependent upon the …
partial pressure of O₂
2 locations for affinity of hemoglobin to oxygen
in the body tissues - in the lungs
regarding affinity of hemoglobin to oxygen in body tissues, oxygen partial pressure is ____ (↑↓)
low
regarding affinity of hemoglobin to oxygen in body tissues, hemoglobin ____ (gains/loses) affinity for oxygen
loses
regarding affinity of hemoglobin to oxygen in body tissues, hemoglobin ____ (attaches/releases) oxygen
releases
regarding affinity of hemoglobin to oxygen in lungs, oxygen partial pressure is ____ (↑↓)
high
regarding affinity of hemoglobin to oxygen in lungs, hemoglobin has a ____ (high/low) affinity for oxygen
high
regarding affinity of hemoglobin to oxygen in lungs, hemoglobin ____ (attaches/releases) oxygen
attaches
4 factors that affect the affinity of hemoglobin to oxygen
pH - temperature - DPG (2,3-diphosphoglyceric acid) - fetal hemoglobin
pH affinity __crease with the decrease in pH
decrease
high CO₂ can __crease pH affinity
decrease
more ____ released to ____ ____ when CO₂ levels are high
oxygen - body tissues
increased temperature causes a __creased affinity
decreased
increase in cellular metabolism causes an increase in ____ & ____ ____ of CO₂ & __crease in pH
temperature - partial pressure - decrease
decreased affinity leads to more ____ released to body
O₂
DPG (2,3-diphosphoglyceric acid) is released by ____ when O₂ supply to body tissue is ____ (high/low
low
BPG (DPG) reversibly binds to ____ & __creasing its affinity to ____
hemoglobin - decreasing - O₂
when DPG is released oxygen is ____ to body tissue
released
fetal hemoglobin has a much ____ (higher/lower) affinity for O₂ than ____ hemoglobin
higher - maternal
maternal hemoglobin releases O₂ to ____ hemoglobin
fetal