( ( mitochondria ( in ( ( eucaryotes , ) ( ( a ( subcellular organelle ) ) ( that ( conducts ( cellular respiration ) ) ) ) ) ) ) ( ( mitochondrion ( ( Membrane-bounded organelle ) ( that ( ( ( specializes ( in ( ( aerobic respiration ) ( -LRB- ( ( oxidative phosphorylation ) -RRB- ) ) ) ) ) and ) ( ( produces ( most ( of ( the ATP ) ) ) ) ( in ( eukaryotic cells ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NN mitochondria)) (PP (IN in) (NP (NP (NNS eucaryotes)) (, ,) (NP (NP (DT a) (NN subcellular) (NN organelle)) (SBAR (WHNP (WDT that)) (S (VP (VBZ conducts) (NP (JJ cellular) (NN respiration))))))))) (VP (VBP mitochondrion) (NP (NP (JJ Membrane-bounded) (NN organelle)) (SBAR (WHNP (WDT that)) (S (VP (VP (VBZ specializes) (PP (IN in) (NP (NP (JJ aerobic) (NN respiration)) (PRN (-LRB- -LRB-) (NP (JJ oxidative) (NN phosphorylation)) (-RRB- -RRB-))))) (CC and) (VP (VBZ produces) (NP (NP (JJS most)) (PP (IN of) (NP (DT the) (NNP ATP)))) (PP (IN in) (NP (JJ eukaryotic) (NNS cells))))))))) (. .)))
mitochondria in eucaryotes, a subcellular organelle that conducts cellular respiration mitochondrion Membrane-bounded organelle that specializes in aerobic respiration (oxidative phosphorylation) and produces most of the ATP in eukaryotic cells.
(ROOT (S (NP (NP (DT The) (NN structure)) (PP (IN of) (NP (NN mitochondrion)))) (VP (VBZ plays) (NP (NP (DT an) (JJ important) (NN role)) (PP (IN in) (NP (JJ aerobic) (NN respiration))))) (. .)))