( ( ( The ( ultimate source ) ) ( of ( energy ( for ( living cells ) ) ) ) ) ( ( is ( ( sunlight , ) ( ( ( captured ( by plants ) ) and ) ( stored ( in ( ( the ( carbon bonds ) ) ( of carbohydrates ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ ultimate) (NN source)) (PP (IN of) (NP (NP (NN energy)) (PP (IN for) (NP (VBG living) (NNS cells)))))) (VP (VBZ is) (NP (NP (NN sunlight)) (, ,) (VP (VP (VBN captured) (PP (IN by) (NP (NNS plants)))) (CC and) (VP (VBN stored) (PP (IN in) (NP (NP (DT the) (NN carbon) (NNS bonds)) (PP (IN of) (NP (NNS carbohydrates))))))))) (. .)))
The ultimate source of energy for living cells is sunlight, captured by plants and stored in the carbon bonds of carbohydrates.
(ROOT (S (NP (NP (JJS Most)) (PP (IN of) (NP (NP (NN food) (POS 's)) (NN chemical) (NN energy)))) (ADVP (RB ultimately)) (VP (VBZ comes) (PP (IN from) (NP (NN sunlight)))) (. .)))