( It ( ( ( is ( ( also importantly ) ( involved ( in ( ( the regulation ) ( of ( fluid levels ) ) ) ) ) ) ) ( ( ( within ( the cell ) ) and ) ( in ( ( maintaining ( the ( correct ( pH balance ) ) ) ) ( within ( the body ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (ADJP (ADVP (ADVP (RB also)) (RB importantly)) (VBN involved) (PP (IN in) (NP (NP (DT the) (NN regulation)) (PP (IN of) (NP (JJ fluid) (NNS levels)))))) (PP (PP (IN within) (NP (DT the) (NN cell))) (CC and) (PP (IN in) (S (VP (VBG maintaining) (NP (DT the) (JJ correct) (NN pH) (NN balance)) (PP (IN within) (NP (DT the) (NN body)))))))) (. .)))
It is also importantly involved in the regulation of fluid levels within the cell and in maintaining the correct pH balance within the body.
(ROOT (S (NP (NP (NNP Processing)) (PP (IN of) (NP (NP (NN filtrate)) (PP (IN in) (NP (DT the) (JJ proximal) (NN tubule)))))) (VP (VBZ helps) (VP (VB maintain) (NP (DT the) (NN ph) (NN level)) (PP (IN in) (NP (NN body) (NN fluid))))) (. .)))