( ( The ( cell ( wall acts ) ) ) ( ( ( ( ( ( as ( ( an ( extra layer ) ) ( of protection ) ) ) ( , ( ( helps ( the cell ) ) ( maintain ( its shape ) ) ) ) ) , ) and ) ( prevents dehydration ) ) . ) )
(ROOT (S (NP (DT The) (NN cell) (NN wall) (NNS acts)) (VP (VP (PP (IN as) (NP (NP (DT an) (JJ extra) (NN layer)) (PP (IN of) (NP (NN protection))))) (, ,) (VBZ helps) (NP (DT the) (NN cell)) (VP (VB maintain) (NP (PRP$ its) (NN shape)))) (, ,) (CC and) (VP (VBZ prevents) (NP (NN dehydration)))) (. .)))
The cell wall acts as an extra layer of protection, helps the cell maintain its shape, and prevents dehydration.
(ROOT (S (NP (DT The) (NN cell) (NN wall) (NNS acts)) (VP (VP (PP (IN as) (NP (NP (DT an) (JJ extra) (NN layer)) (PP (IN of) (NP (NN protection))))) (, ,) (VBZ helps) (NP (DT the) (NN cell)) (VP (VB maintain) (NP (PRP$ its) (NN shape)))) (, ,) (CC and) (VP (VBZ prevents) (NP (NN dehydration)))) (. .)))