Multiple Choice
Which of the following best describes the primary function of hemoglobin in the human body?
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8. Protein Function
Hemoglobin Cooperativity
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Each molecule of hemoglobin can transport how many molecules of $\mathrm{O_2}$?
A
2
B
1
C
8
D
4
Verified step by step guidance1
Understand the structure of hemoglobin: Hemoglobin is a tetrameric protein composed of four subunits, each containing a heme group capable of binding one molecule of oxygen ($\mathrm{O_2}$).
Recognize the oxygen-binding capacity: Since each heme group binds one molecule of $\mathrm{O_2}$, and hemoglobin has four heme groups, the total oxygen-binding capacity is four molecules of $\mathrm{O_2}$.
Relate this to the options provided: The correct answer corresponds to the number of $\mathrm{O_2}$ molecules that hemoglobin can transport, which is 4.
Review the physiological significance: Hemoglobin's ability to bind four molecules of $\mathrm{O_2}$ is crucial for efficient oxygen transport in the blood, ensuring delivery to tissues.
Confirm the answer: Based on the structural and functional understanding of hemoglobin, the correct answer is 4 molecules of $\mathrm{O_2}$.
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