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Question
The haemoglobin of a human foetus ______.
Options
has a lower affinity for oxygen than that of the adult
Is affinty for oxygen in the same as that of an adult
has only 2 protein sub-units instead of 4
has a higher affinity for oxygen than that of an adult
MCQ
Fill in the Blanks
Solution
The haemoglobin of a human foetus has a higher affinity for oxygen than that of an adult.
Explanation:
The oxygen required for aerobic respiration diffuses from a high to low concentration region in the mother's blood to the foetal's blood. Because the foetal haemoglobin has a stronger affinity for oxygen than adult haemoglobin, the efficiency of exchange is improved.
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