Which of the following secrete surfactant:: (A) Type II Pneumocyte, (B) Type I Pneumocyte, (C) Goblet cells, (D) Paneth cells
Answer is A. Ans. A. Type II PneumocyteSurfactant is made up of PHOSPHOLIPID- DI-PALMITOIL-PHOPHATIDYL-CHOLINE (DPPC) + two major proteins having molecular weights of 32,000 and 10,000. It is secreted by TYPE II ALVEOLAR EPITHELIAL CELLS (type II Pneumocyte)