The Na+/K+ ATPase (or simply Na+ pump) is a ubiquitous membrane transport protein found in all body cell types. Test your basic knowledge of the Na+/K+ ATPase by taking this simple quiz.
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(1) The α subunit of the Na+/K+ ATPase contains __________ transmembrane domain(s).
(2) The β subunit of the Na+/K+ ATPase contains __________ transmembrane domain(s).
(3) The FXYD subunit of the Na+/K+ ATPase contains __________ transmembrane domain(s).
(4) The Na+/K+ ATPase is localized to the __________ membrane domain in nearly all epithelial cells.
(5) The Na+/K+ ATPase is localized to the basolateral membrane domain in epithelial cells of the following tissues:
(6) The Na+/K+ ATPase is localized to the apical membrane domain in epithelial cells of the following tissues:
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Posted: Monday, December 29, 2014
Last updated: Tuesday, March 11, 2025
Last updated: Tuesday, March 11, 2025
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