Which of the Following Statements About the Binding of Oxygen

question 32

Multiple Choice

Which of the following statements about the binding of oxygen to deoxyhemoglobin is correct

• A) The binding of oxygen to Fe²⁺ in the first heme pulls the iron ion into the porphyrin ring, decreasing the affinity for the second oxygen.
• B) The binding of oxygen to Fe²⁺ in the first heme pushes the iron ion out of the porphyrin ring, decreasing the affinity for the second oxygen.
• C) The binding of oxygen to Fe²⁺ in the first heme pulls the iron ion into the porphyrin ring, increasing the affinity for the second oxygen.
• D) The binding of oxygen to Fe²⁺ in the first heme pushes the iron ion out of the porphyrin ring, increasing the affinity for the second oxygen.
• E) Oxygen does not bind to deoxyhemoglobin.

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Definitions:

Large and Small States

A reference to the balance of power and representation concerns between more populous and less populous states within a federated system, especially during the drafting of the U.S. Constitution.

Representation

The process by which elected officials serve as proxies for their constituents in the decision-making process.

The Federalist Papers

A series of 85 articles and essays written to promote the ratification of the United States Constitution.

Alexander Hamilton

A Founding Father of the United States, first Secretary of the Treasury, and influential interpreter of the U.S. Constitution.