( ( ( Compare ( passive ( membrane transport ) ) ) ( with ( active ( membrane transport ) ) ) ) . )
(ROOT (S (VP (VB Compare) (NP (JJ passive) (JJ membrane) (NN transport)) (PP (IN with) (NP (JJ active) (JJ membrane) (NN transport)))) (. .)))
Compare passive membrane transport with active membrane transport.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NNS substances)) (VP (VBP pass) (PP (IN through) (NP (DT the) (NN cell) (NN membrane))) (PP (IN without) (S (VP (VBG needing) (NP (DT any) (NN energy)))))))) (, ,) (NP (PRP it)) (VP (VBZ is) (VP (VBN called) (NP (JJ passive) (NN transport)))) (. .)))