Your airways are coated with a thin layer of liquid called ASL and a mucus gel layer, both which neutralize foreign particles to prevent infection. In people with
Cystic Fibrosis, a gene has an error, which causes the cells of the airways (lungs, etc) to have defective plasma membranes The ASL and mucus are much
thicker than usual near the defective cells, causing a lot of lung congestion because the defective cells allow too much salt into the cells Why would allowing too much salt into the cells create thicker ASL and mucus?
À. The increased salt in the cells makes the person thirsty, leading to thickened ASL and mucus in the lungs
B. The increased salt in the cells causes water from the airways to move into the cells by osmosis, thickening the ASL and mucus in the lungs.
C. The increased salt in the cells causes water from the cells to move into the airways, thickening the ASL and mucus in the lungs
D. The increased salt in the cells is absorbed by the cytoplasm of the cell causing water to leave the cells and enter the lungs,