In roots, a membrane potential is created by pumping ______ ions into the extracellular space. 13:18 Biology In roots, a membrane potential is created by pumping ______ ions into the extracellular space.A) SucroseB) PotassiumC) NitrateD) HydrogenAnswer: D) Hydrogen Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+