Question

In which portion of the primary lobule does gas exchange occur?

Question options:

A)	Pores of Kohn

B)	Type II pneumocyte

C)	tight space of interstitium

D)	loose space of intestitium

Answer 1

Answer:-B) Type II Pneumocyte

Pneumocyte are the one of the cells lining the alveoli in the lung.The alveoli lined with two types of cells called type 1 and type 2 Pneumocytes.

Type 2 Pneumocytes are the cell responsible for the production and secretion of surfactant .Type 2 Pneumocytes also called Great alveolar cells.Type 2 Pneumocyte secrete pulmonary surfactant to lower the surface tension of water and allows the membrane to separate ,therefore increasing the capability of gas exchange.