Type II alveolar cells
A) allow rapid diffusion of gases through their thin membranes.
B) secrete a chemical known as surfactant.
C) are phagocytic.
D) allow rapid diffusion of gases through their thin membranes, secrete a chemical known as surfactant, and are phagocytic.
E) None of the statements are true.

Question

Quizplus · Accepted Answer

Type II alveolar cells are responsible for secreting surfactant, which reduces surface tension in the alveoli and prevents their collapse. They do not primarily function in gas diffusion or phagocytosis.

Type II Alveolar Cells