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MCAT Question of the Day
Q:
Hemoglobin exhibits a phenomenon called cooperativity, which means:
A
the hemoglobin molecule can bind multiple types of molecules, not just oxygen.
B
the four subunits of hemoglobin are able to bind together without need for any enzymatic catalysis.
C
the molecule can interact with other hemoglobin molecules to improve oxygen saturation.
D
each additional molecule of oxygen binding to hemoglobin makes subsequent binding of oxygen molecules easier.
Respiratory System
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