( ( understand ( how ( ( the ( Donnan equilibrium ) ) ( is ( ( involved ( in ( bicarbonate ( and ( chloride movement ) ) ) ) ) ( across ( the ( red ( cell wall ) ) ) ) ) ) ) ) ) ; )
(ROOT (S (VP (VB understand) (SBAR (WHADVP (WRB how)) (S (NP (DT the) (NNP Donnan) (NN equilibrium)) (VP (VBZ is) (VP (VBN involved) (PP (IN in) (NP (NN bicarbonate) (CC and) (NN chloride) (NN movement))) (PP (IN across) (NP (DT the) (JJ red) (NN cell) (NN wall)))))))) (: ;)))
understand how the Donnan equilibrium is involved in bicarbonate and chloride movement across the red cell wall;
(ROOT (S (PP (IN In) (NP (DT the) (NNS lungs))) (, ,) (NP (NN bicarbonate)) (VP (VBZ is) (VP (VBN transported) (PRT (RP back)) (PP (IN into) (NP (NP (DT the) (JJ red) (NN blood) (NNS cells)) (PP (IN in) (NP (NN exchange))))) (PP (IN for) (NP (NN chloride))))) (. .)))