( ( ( ( Specialized proteins ) , ) ( ( ( called enzymes ) , ) ( serve ( as ( catalysts ( to ( lower ( the energy ) ) ) ) ) ) ) ) ( ( ( ( required ( for reactions ) ) ( to ( proceed ( within ( the ( living cell ) ) ) ) ) ) . ) -RRB- ) )
(ROOT (S (NP (NP (JJ Specialized) (NNS proteins)) (, ,) (VP (VBN called) (NP (NNS enzymes)) (, ,) (S (VP (VB serve) (SBAR (IN as) (S (NP (NNS catalysts)) (VP (TO to) (VP (VB lower) (NP (DT the) (NN energy)))))))))) (VP (VBD required) (PP (IN for) (NP (NNS reactions))) (S (VP (TO to) (VP (VB proceed) (PP (IN within) (NP (DT the) (VBG living) (NN cell))))))) (. .) (-RRB- -RRB-)))
Specialized proteins, called enzymes, serve as catalysts to lower the energy required for reactions to proceed within the living cell.)
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (NNS catalysts)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBN found) (ADVP (RB inside)) (PP (IN of) (S (VP (VBG living) (NP (NNS things) (NNS enzymes))))))))))) (. .)))