The affinity of hemoglobin for oxygen is __________ as the partial pressure of oxygen is raised.
A)increased
B)decreased
C)unchanged

Question

Quizplus · Accepted Answer

As the partial pressure of oxygen increases, the affinity of hemoglobin for oxygen increases. This is known as the oxygen-hemoglobin dissociation curve, which shows how hemoglobin's affinity for oxygen changes with different partial pressures of oxygen. As the partial pressure of oxygen increases, more oxygen molecules bind to hemoglobin, causing a conformational change that increases hemoglobin's affinity for even more oxygen molecules.

The Affinity of Hemoglobin for Oxygen Is __________ as the Partial