Premature babies sometimes suffer from infant respira
dw- 5h pn+a lic0(jfx)tory distress syndrome, which could be caused by a lack of
+xwjdi 0-)cah5p(n l f sufficient surfactant in the pulmonary alveoli. The diagram below shows two different alveoli structures.
1.Describe one feature of the surfactant.
2.Suggest a treatment for infant respiratory distress syndrome.
3.Draw a labelled diagram of the structures in an alveolus that are important for gas exchange.