Cystic fibrosis patients lack a gene that codes for a transmembrane carrier of:
Correct answer: C. CI- ions
- A. Na+ ions
- B. K+ ions
- C. CI- ions
- D. Ca2+ ions
- E. Mg2+ ions
Explanation
Cystic fibrosis is due to the lack of Cl- protein channels which leads to decreased movement of chloride ions outside the cell, and thus water, leading to thickened mucus. All other options are wrong as Na+, K+, Ca+2 ,Mg+2 are not involved in Cystic fibrosis.
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