( ( differentiate ( plant ( cells ( and ( animal cells ) ) ) ) ) . )
(ROOT (S (VP (VB differentiate) (NP (NN plant) (NNS cells) (CC and) (NN animal) (NNS cells))) (. .)))
differentiate plant cells and animal cells.
(ROOT (S (NP (DT A) (NN cell) (NN wall)) (VP (VBZ is) (VP (VBN found) (PP (PP (IN in) (NP (DT a) (NN plant) (NN cell))) (CONJP (CC but) (RB not)) (PP (IN in) (NP (DT an) (NN animal) (NN cell)))))) (. .)))
A cell wall is found in a plant cell but not in an animal cell.