Which factor predominantly influences the rightward shift of the oxygen dissociation curve?
ApH (Bohr effect)
B2,3-Bisphosphoglycerate (2,3-BPG)
CTemperature increase
DCarbon monoxide levels
Which of the following statements about hemoglobin is true?
AEach hemoglobin molecule can bind up to six O2 molecules.
BEach hemoglobin subunit contains two heme groups, which bind oxygen.
CHemoglobin consists of two alpha and two beta subunits, each capable of binding one O2 molecule.
DEach hemoglobin molecule is made of 6 polypeptide chains.
What is the primary physiological effect of increased 2,3-DPG on hemoglobin?
AIncreased affinity of hemoglobin to oxygen
BDecreased affinity of hemoglobin to oxygen
CLeft shift of oxygen-hemoglobin dissociation curve
DRight shift of oxygen-hemoglobin dissociation curve
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