( Prokaryotes ( ( are ( cells ( that ( ( do not ) ( have ( a ( membrane-bound nucleus ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Prokaryotes)) (VP (VBP are) (NP (NP (NNS cells)) (SBAR (WHNP (WDT that)) (S (VP (VBP do) (RB not) (VP (VB have) (NP (DT a) (JJ membrane-bound) (NN nucleus)))))))) (. .)))
Prokaryotes are cells that do not have a membrane-bound nucleus.
(ROOT (S (NP (JJ Prokaryotic) (NNS cells)) (VP (VBP have) (NP (NP (DT a) (NN cell) (NN wall)) (PP (IN outside) (NP (PRP$ their) (NN plasma) (NN membrane))))) (. .)))