The alveoli contain specialised cells that secreted phospholipoprotein complex known a pulmonary surfactant. The function of pulmonary surfactant is:

To facilitate the diffusion of \[{{O}_{2}}\] and \[C{{O}_{2}}\] by providing protein channels through which these gases flow.

To provide some rigidity to the alveoli m prevent lung collapse.

To decrease the surface tension of the alveoli, making it easier to expand them

To provide a sticky surface upon which dust and microbes are trapped and disposed of

The alveoli contain specialised cells that secreted phospholipoprotein

1.	The alveoli contain specialised cells that secreted phospholipoprotein complex known a pulmonary surfactant. The function of pulmonary surfactant is:
A.	To provide some rigidity to the alveoli m prevent lung collapse.
B.	To decrease the surface tension of the alveoli, making it easier to expand them
C.	To facilitate the diffusion of \[{{O}_{2}}\] and \[C{{O}_{2}}\] by providing protein channels through which these gases flow.
D.	To provide a sticky surface upon which dust and microbes are trapped and disposed of
Answer» C. To facilitate the diffusion of \[{{O}_{2}}\] and \[C{{O}_{2}}\] by providing protein channels through which these gases flow.