( ( ( This ( ( simple ( , stable ) ) ( bilayer arrangement ) ) ) ( of phospholipids ) ) ( ( is ( ( the ( fundamental structure ) ) ( of ( cell membranes ) ) ) ) . ) )
(ROOT (S (NP (NP (DT This) (ADJP (JJ simple) (, ,) (JJ stable)) (NN bilayer) (NN arrangement)) (PP (IN of) (NP (NNS phospholipids)))) (VP (VBZ is) (NP (NP (DT the) (JJ fundamental) (NN structure)) (PP (IN of) (NP (NN cell) (NNS membranes))))) (. .)))
This simple, stable bilayer arrangement of phospholipids is the fundamental structure of cell membranes.
(ROOT (S (NP (NNS Phospholipids)) (VP (VBP are) (NP (NP (DT the) (JJ main) (NN component)) (PP (IN of) (NP (DT the) (NN cell) (NN membrane))))) (. .)))