( ( ( The transport ) ( of ( substances ( from ( cell ( to ( cell ( via plasmodesmata ) ) ) ) ) ) ) ) ( ( is ( called ( symplastic transport ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN transport)) (PP (IN of) (NP (NP (NNS substances)) (PP (IN from) (NP (NP (NN cell)) (PP (TO to) (NP (NP (NN cell)) (PP (IN via) (NP (NN plasmodesmata)))))))))) (VP (VBZ is) (VP (VBN called) (NP (JJ symplastic) (NN transport)))) (. .)))
The transport of substances from cell to cell via plasmodesmata is called symplastic 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)))) (. .)))