( ( Buffers ( By ( ( minimizing ( wide fluctuations ) ) ( in pH ) ) ) ) ( , ( ( buffers ( help organisms ) ) ( ( ( maintain ( ( the pH ) ( of ( body fluids ) ) ) ) ( within ( ( the ( narrow range ) ) ( ( necessary ( for life ) ) ( -LRB- ( usually ( ( pH 6-8 ) -RRB- ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (ADVP (RB Buffers)) (IN By) (S (VP (VBG minimizing) (NP (JJ wide) (NNS fluctuations)) (PP (IN in) (NP (NN pH)))))) (, ,) (NP (JJ buffers) (NN help) (NNS organisms)) (VP (VBP maintain) (NP (NP (DT the) (NN pH)) (PP (IN of) (NP (NN body) (NNS fluids)))) (PP (IN within) (NP (NP (DT the) (JJ narrow) (NN range)) (ADJP (ADJP (JJ necessary) (PP (IN for) (NP (NN life)))) (PRN (-LRB- -LRB-) (ADVP (RB usually)) (ADJP (JJ pH) (NP (CD 6-8))) (-RRB- -RRB-)))))) (. .)))
Buffers By minimizing wide fluctuations in pH, buffers help organisms maintain the pH of body fluids within the narrow range necessary for life (usually pH 6-8).
(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))))) (. .)))