( ( Eukaryotic cells ) ( ( ( ( are ( bounded ( by ( a ( plasma membrane ) ) ) ) ) and ) ( have ( ( a ( smaller ( surface-to-volume ratio ) ) ) ( than ( those ( of ( prokaryotes 2 ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Eukaryotic) (NNS cells)) (VP (VP (VBP are) (VP (VBN bounded) (PP (IN by) (NP (DT a) (NN plasma) (NN membrane))))) (CC and) (VP (VBP have) (NP (NP (DT a) (JJR smaller) (JJ surface-to-volume) (NN ratio)) (PP (IN than) (NP (NP (DT those)) (PP (IN of) (NP (JJ prokaryotes) (CD 2)))))))) (. .)))
Eukaryotic cells are bounded by a plasma membrane and have a smaller surface-to-volume ratio than those of prokaryotes 2.
(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))))) (. .)))