( plasma ( ( membrane ( ( The membrane ) ( that ( encloses ( a cell ) ) ) ) ) . ) )
(ROOT (S (NP (NN plasma)) (VP (VBZ membrane) (NP (NP (DT The) (NN membrane)) (SBAR (WHNP (WDT that)) (S (VP (VBZ encloses) (NP (DT a) (NN cell))))))) (. .)))
plasma membrane The membrane that encloses a cell.
(ROOT (S (NP (NP (DT All) (NNS types)) (PP (IN of) (NP (NNS cells)))) (VP (VBP are) (VP (VBN enclosed) (PP (IN by) (NP (DT a) (NN membrane))))) (. .)))
All types of cells are enclosed by a membrane.