( ( ( ( cell ultrastructure ) , ) ( biogenesis ( of ( organelles ( in ( differentiated ( cell types ) ) ) ) ) ) ) ; )
(ROOT (NP (NP (NN cell) (NN ultrastructure)) (, ,) (NP (NP (NNS biogenesis)) (PP (IN of) (NP (NP (NNS organelles)) (PP (IN in) (NP (JJ differentiated) (NN cell) (NNS types)))))) (: ;)))
cell ultrastructure, biogenesis of organelles in differentiated cell types;
(ROOT (S (NP (JJS Most) (NNS organelles)) (VP (VBP are) (RB not) (VP (VBN found) (PP (IN in) (NP (JJ prokaryotic) (NNS cells))))) (. .)))