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← ScienceWhich outcome results when an electrical potential threshold across a lipid membrane containing concentrated NaCl exceeds its dielectric strength?
A)Membrane rupture and pore formation✓
B)Increased membrane protein functionality
C)Selective ion transport enhancement
D)Lipid bilayer phase transition
💡 Explanation
Membrane rupture occurs because exceeding the dielectric strength initiates dielectric breakdown; this leads to localized ionization via impact ionization from the intense localized field, therefore creating conductive pathways and forming pores, rather than the other selective changes within the membrane.
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