( ( Muscle contractions ) ( ( require ( adenosine ( ( triphosphate ( ( -LRB- ( ATP -RRB- ) ) energy ) ) ( which ( is ( produced ( by ( glycolysis ( -LRB- ( ( ( the breakdown ) ( of ( the ( glucose molecule ) ) ) ) -RRB- ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Muscle) (NNS contractions)) (VP (VBP require) (VP (VB adenosine) (NP (NP (JJ triphosphate) (PRN (-LRB- -LRB-) (NP (NNP ATP)) (-RRB- -RRB-)) (NN energy)) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (VP (VBN produced) (PP (IN by) (NP (NP (NNS glycolysis)) (PRN (-LRB- -LRB-) (NP (NP (DT the) (NN breakdown)) (PP (IN of) (NP (DT the) (NN glucose) (NN molecule)))) (-RRB- -RRB-))))))))))) (. .)))
Muscle contractions require adenosine triphosphate (ATP) energy which is produced by glycolysis (the breakdown of the glucose molecule).
(ROOT (S (NP (DT The) (NN coenzyme) (NN atp) (CC or) (NN adenozine) (NN triphosphate)) (VP (VBZ is) (VP (VBN used) (PP (IN in) (NP (NP (DT the) (NN transfer)) (PP (IN of) (NP (NN energy))))) (PP (IN in) (NP (NNS muscles))))) (. .)))