Biology, asked by Ayushsingh5819, 1 year ago

Why might an oxygen dissociation curve be sigmoidal?

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Answered by tiyasadutta24

0

More molecules bind as the oxygen partial pressure increases until the maximum amount that can be bound is reached. As this limit is approached, very little additional binding occurs and the curve levels out as the hemoglobin becomes saturated with oxygen. Hence the curve has a sigmoidal or S-shape.

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