Question

Which of the following explains how this affects the cilia? A. The thick mucous just suffocates the cells and kills them off one by one B. The thick mucous traps other cells, so they stick together making infections more likely C. The thick mucous pulls the infection into the cells causing damage. D. The mucous is so thick that the cilia can’t move and if it can’t move it can’t clear out bacteria and infections are more likely to occur

Answer 1

Thick mucus due to the lack of proper ion transport by the CFTR channel makes the cilia unable to move, preventing them from clearing out trapped bacteria and making infections more likely.

Step-by-step explanation:

The question examines how thick mucus affects the cilia in the respiratory system. The correct answer is D. The mucus is so thick that the cilia can’t move, and if it can’t move, it can’t clear out bacteria and infections are more likely to occur. When the CFTR channel is absent, Cl- ions are not released properly, causing a failure to draw positive ions like Na+. This results in thick, sticky mucus due to the lack of a normal water concentration gradient and no osmotic pressure to pull water into the mucus. Consequently, the cilia are unable to move effectively to transport the mucus out of the respiratory system, leading to mucus accumulation and increased susceptibility to bacterial infections.

Answer 2

I believe that the answer is B or D most likely D