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← ScienceWhich process is disrupted when excess molecular oxygen prevents hemoglobin function?
A)Cooperative binding✓
B)Enzyme inhibition
C)Competitive expulsion
D)Allosteric regulation
💡 Explanation
Excess oxygen shifts the hemoglobin equilibrium, favoring oxygen saturation levels beyond optimum; cooperative binding, where oxygen binding affinity changes, fails because of over-saturation. Therefore hemoglobin's regulated oxygen release fails, rather than enzyme inhibition.
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