( ( This ( high resistivity ) ) ( ( ( prevents ions ) ( from ( ( crossing ( the bilayer ) ) ( without ( ( an ( integral ( membrane protein ) ) ) ( using ( facilitated diffusion ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This) (JJ high) (NN resistivity)) (VP (VBZ prevents) (NP (NNS ions)) (PP (IN from) (S (VP (VBG crossing) (NP (DT the) (NN bilayer)) (PP (IN without) (NP (NP (DT an) (JJ integral) (JJ membrane) (NN protein)) (VP (VBG using) (NP (JJ facilitated) (NN diffusion))))))))) (. .)))
This high resistivity prevents ions from crossing the bilayer without an integral membrane protein using facilitated diffusion.
(ROOT (NP (NP (NP (NNP Ion) (NNP channels) (NNP facilitate)) (PRN (-LRB- -LRB-) (PRP s) (-RRB- -RRB-))) (NP (NP (DT the) (NN diffusion)) (PP (IN of) (NP (NP (NNS ions)) (PP (IN across) (NP (DT a) (NN membrane)))))) (. .)))