Which of the following are cells that produce surfactant?

a. alveolar macrophages

b. capillary endothelial cell

c. fused basement membranes

d. type I cell

e. type Il cell

Type Il cell.

Explanation:

Surfactant may be defined as the chemical that decreases the surface tension between the lungs. Pulmonary surfactant is the thin layer of fluid that increases the efficiency of gas exchange.

Type II alveolar cells of the lungs produces the surfactant. Lipida and proteins are the major constituent of the surfactant produced in the lungs. The surfactatnt is important for maintaining the integrity of alveoli.

Thus, the correct answer is option (e).