( ( ( ( ( Movement ( is ( along ( a ( concentration gradient ) ) ) ) ) , ) so ) ( there ( is ( ( no energy ) ( required ( Active ( transport ( ( Solute molecules ) ( are ( ( ( moved or ) pumped ) ( across ( ( the membrane ) ( in ( ( an energy ) ( requiring fashion ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Movement)) (VP (VBZ is) (PP (IN along) (NP (DT a) (NN concentration) (NN gradient))))) (, ,) (IN so) (S (NP (EX there)) (VP (VBZ is) (NP (NP (DT no) (NN energy)) (VP (VBN required) (S (NP (NNP Active)) (VP (VB transport) (SBAR (S (NP (NNP Solute) (NNS molecules)) (VP (VBP are) (VP (VBN moved) (CC or) (VBN pumped) (PP (IN across) (NP (NP (DT the) (NN membrane)) (PP (IN in) (NP (NP (DT an) (NN energy)) (VP (VBG requiring) (NP (NN fashion))))))))))))))))) (. .)))
Movement is along a concentration gradient, so there is no energy required Active transport Solute molecules are moved or pumped across the membrane in an energy requiring fashion.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (DT the) (NN movement)) (PP (IN of) (NP (NP (NNS molecules)) (PP (IN across) (NP (DT a) (ADJP (JJ membrane) (PP (IN without) (NP (NP (DT the) (NN input)) (PP (IN of) (NP (NN energy)))))) (JJ passive) (NN transport))))))) (. .)))