4.5 Transport Of Gases In The Blood

Question 1

Describe the structure of haemoglobin

Answer 1

Globular, water soluble, consists of 4 polypeptide chains carrying a harm group

Question 2

How does foetal haemoglobin differ from adult haemoglobin

Answer 2

Partial pressure of oxygen is low by the time it reaches the foetus therefore foetal haemoglobin has a higher affinity for oxygen than adult allowing both mother and child’s oxygen needs to be met