( ( ( Fat and ) Protein ) ( ( ( can also ) ( be ( ( catabolized ( by ( cellular respiration ) ) ) ( to ( ( produce energy ) ( for ( the cell ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Fat) (CC and) (NNP Protein)) (VP (MD can) (ADVP (RB also)) (VP (VB be) (VP (VBN catabolized) (PP (IN by) (NP (JJ cellular) (NN respiration))) (S (VP (TO to) (VP (VB produce) (NP (NN energy)) (PP (IN for) (NP (DT the) (NN cell))))))))) (. .)))
Fat and Protein can also be catabolized by cellular respiration to produce energy for the cell.
(ROOT (S (PP (IN As) (NP (NP (DT a) (NN result)) (PP (IN of) (NP (JJ cellular) (NN respiration))))) (, ,) (NP (NP (NN energy)) (PP (IN for) (NP (NN cell) (NNS processes)))) (VP (VBZ is) (VP (VBN released))) (. .)))