Chloride Channels Are Disrupted in Patients with Cystic Fibrosis

question 7

Multiple Choice

Chloride channels are disrupted in patients with Cystic Fibrosis. What implications does this have on ion transport, water, and airway clearance?

• A) Defective chloride transport and enhanced sodium absorption lead to a net increase in water absorption, thinned airway surface liquids, and decreased ciliary clearance.
• B) Defective chloride transport and enhanced sodium absorption lead to a net decrease in water absorption, thinned airway surface liquids, and decreased ciliary clearance.
• C) Defective sodium transport and enhanced chloride absorption lead to a net increase in water absorption, thinned airway surface liquids, and decreased ciliary clearance.
• D) Defective chloride transport and enhanced calcium absorption lead to a net decrease in water absorption, thinned airway surface liquids, and decreased ciliary clearance.

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Definitions:

Crystallization

The process by which a solid forms, where the atoms or molecules are highly structured in a pattern extending in all three spatial dimensions.

Felsic Minerals

Light-colored minerals that are rich in silica and aluminum, commonly found in continental crust rocks like granite.

Mafic Minerals

Dark-colored minerals that are rich in magnesium and iron, commonly found in basalt and gabbro.

Igneous Rocks

Rocks formed from the cooling and solidification of molten magma or lava.