Question

in healthy cells, the k+ ion channel moves k+ ions into the _____ using _____. lumen; passive transport lumen; active transport interstitial fluid; passive transport interstitial fluid; active transport

Explanation:

Ion channels typically facilitate passive transport of ions down their concentration gradient. K+ ion channels move K+ ions from the cell into the interstitial fluid passively. Lumen is not the typical destination for K+ movement via ion - channels in this context.

Answer:

C. interstitial fluid; passive transport