Hemoglobin
A) Combines Preferentially with O₂ Over Any Other Substance $\mathrm { P } _ { 0 _ { 2 } }$

question 10

Multiple Choice

Hemoglobin

• A) combines preferentially with O₂ over any other substance
• B) when combined with carbon dioxide, is known as carboxyhemoglobin
• C) plays a critical role in determining the amount of O₂ that is exchanged between alveoli and blood because it acts as a storage depot, removing dissolved O₂ from the blood and keeping \(\mathrm { P } _ { 0 _ { 2 } }\) low by allowing net diffusion of O₂ to continue until the hemoglobin is completely saturated
• D) combines preferentially with O₂ over any other substance, and when combined with carbon dioxide, is known as carboxyhemoglobin
• E) all of these

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