Body Fluids and Circulation Question 18
18. The haemoglobin of a human foetus
[2008]
(a) has a lower affinity for oxygen than that of the adult.
(b) has affinity for oxygen is the same as that of an adult.
(c) has only 2 protein subunits instead of 4 .
(d) has a higher affinity for oxygen than that of an adult.
Show Answer
Answer : d
Hints & Solutions
(d) The haemoglobin of a human foetus has a higher affinity for oxygen than that of an adult. Foetal haemoglobin binds to oxygen more strongly than adult haemoglobin, enabling the transfer of oxygen from mother to foetus prenatally.
