How many molecules of O_2 can one molecule of | vedclass

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(A) Hemoglobin is a quaternary protein found in red blood cells that is responsible for oxygen transport. Each hemoglobin molecule consists of $4$ pol

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$4$

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(A) Hemoglobin is a quaternary protein found in red blood cells that is responsible for oxygen transport. Each hemoglobin molecule consists of $4$ polypeptide subunits (two alpha and two beta chains). Each subunit contains a heme group with a central iron atom $(Fe^{2+})$. Since each heme group can bind to one molecule of $O_2$,a single hemoglobin molecule can carry a maximum of $4$ molecules of $O_2$ to form oxyhemoglobin.

How many molecules of $O_2$ can one molecule of hemoglobin carry?

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