How Is a Fetus Able to Extract O₂ from Its

question 116

Multiple Choice

How is a fetus able to extract O₂ from its mother's blood?

• A)Fetal hemoglobin has a higher affinity for O₂ than maternal hemoglobin.
• B)Fetal hemoglobin has a lower affinity for O₂ than maternal hemoglobin.
• C)The pO₂ of fetal blood is higher than the pO₂ of maternal blood.
• D)Fetal blood has a higher concentration of hemoglobin than maternal blood.
• E)The maternal blood mixes with the fetal blood in the placenta to provide O₂.

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