( ( The ( light reactions ) ) ( ( take ( ( place ( in ( ( ( the ( thylakoid membrane ) ) and ) ( the ( dark reactions ) ) ) ) ) ( ( take place ) ( in ( the stroma ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ light) (NNS reactions)) (VP (VBP take) (S (NP (NP (NN place)) (PP (IN in) (NP (NP (DT the) (JJ thylakoid) (NN membrane)) (CC and) (NP (DT the) (JJ dark) (NNS reactions))))) (VP (VB take) (NP (NN place)) (PP (IN in) (NP (DT the) (NN stroma)))))) (. .)))
The light reactions take place in the thylakoid membrane and the dark reactions take place in the stroma.
(ROOT (S (NP (DT The) (JJ light) (NNS reactions)) (VP (VBP take) (NP (NP (NN place)) (PP (IN in) (NP (DT the) (NN thylakoid))))) (. .)))