( ( The tonoplast ) ( ( is ( ( the membrane ) ( that ( surrounds ( the vacuole ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN tonoplast)) (VP (VBZ is) (NP (NP (DT the) (NN membrane)) (SBAR (WHNP (WDT that)) (S (VP (VBZ surrounds) (NP (DT the) (NN vacuole))))))) (. .)))
The tonoplast is the membrane that surrounds the vacuole .
(ROOT (S (NP (NP (DT The) (NN name)) (PP (IN for) (NP (NP (JJ membrane-bound) (NNS sacs)) (SBAR (WHNP (WDT that)) (S (VP (VBP function) (PP (IN in) (NP (NN storage) (CC and) (NN transport))))))))) (VP (VBZ is) (ADJP (JJ vacuoles))) (. .)))