Premature babies sometimes suffe
etv c 7*/2: vzi4pbm c2f-woozr from infant respiratory distress syndrome, which could be caused by a lack of sufficient surfactant
*bw vc2zf2/o tco4ze7v i-:pm 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.