( ( Prokaryote cells ) ( ( lack ( ( ( a nucleus ) and ) ( membrane-bound organelles ) ) ) . ) )
(ROOT (S (NP (JJ Prokaryote) (NNS cells)) (VP (VBP lack) (NP (NP (DT a) (NN nucleus)) (CC and) (NP (JJ membrane-bound) (NNS organelles)))) (. .)))
Prokaryote cells lack a nucleus and membrane-bound organelles.
(ROOT (S (NP (JJS Most) (NNS organelles)) (VP (VBP are) (RB not) (VP (VBN found) (PP (IN in) (NP (JJ prokaryotic) (NNS cells))))) (. .)))