Patients of cystic fibrosis (CF) produces thick mucus because of faulty:
Correct answer: A. Trans-membrane carrier
- A. Trans-membrane carrier
- B. Cl- ions
- C. Na+ ions
- D. Mucus membrane
Explanation
The trans-membrane carrier is responsible for allowing Chlorine ions to enter into the mucus so that water may follow due to osmosis, making the mucus less viscous. In CF, this carrier protein is defective so it doesn't provide a path for the chlorine ions to enter into the mucus, rendering the mucus thick.
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