( ( ( Distinguish ( between ( passive ( ( transport and ) ( active transport ) ) ) ) ) ( of ( molecules ( across membranes ) ) ) ) . )
(ROOT (NP (NP (NNP Distinguish)) (PP (IN between) (NP (JJ passive) (NX (NX (NN transport)) (CC and) (NX (ADJP (JJ active)) (NN transport))))) (PP (IN of) (NP (NP (NNS molecules)) (PP (IN across) (NP (NNS membranes))))) (. .)))
Distinguish between passive transport and active transport of molecules across membranes.
(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))))))) (. .)))