( ( Krebs Cycle ) ( ( refers ( to ( ( a ( cell 's ) ) ( ability ( to ( ( convert ( glucose ( and ( other nutrients ) ) ) ) ( into energy ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Krebs) (NNP Cycle)) (VP (VBZ refers) (PP (TO to) (NP (NP (DT a) (NN cell) (POS 's)) (NN ability) (S (VP (TO to) (VP (VB convert) (NP (NN glucose) (CC and) (JJ other) (NNS nutrients)) (PP (IN into) (NP (NN energy))))))))) (. .)))
Krebs Cycle refers to a cell's ability to convert glucose and other nutrients into energy .
(ROOT (S (NP (NP (NNS Monosaccharides)) (, ,) (ADJP (RB particularly) (JJ glucose)) (, ,)) (VP (VBP are) (NP (NP (JJ major) (NNS nutrients)) (PP (IN for) (NP (NNS cells))))) (. .)))