The walls of the alveoli are composed of two types of cells, type i and type ii alveolar cells. the function of type ii alveolar cells is to the walls of the alveoli are composed of two types of cells, type i and type ii alveolar cells. the function of type ii alveolar cells is to

The answer would be: secrete surfactant

Type II alveolar cells will secrete surfactant that will reduce the surface tension of the alveoli. A high surface tension will cause the lungs hard to inflate when doing inspiration. Respiratory distress in premature baby mostly caused by surfactant deficiency as their lungs can't produce it. 

Nine months old i think but i’m not that sure