( ( ( To ( consider ( ( ( the nature ) ( of ( ( ( those ( biochemical reactions ) ) and ) ( cellular interactions ) ) ) ) ( which ( are ( essential ( for ( ( the survival ) ( of ( living cells ) ) ) ) ) ) ) ) ) ) and ) ( ( for ( ( the functioning ) ( of ( whole organisms ) ) ) ) . ) )
(ROOT (X (S (VP (TO To) (VP (VB consider) (NP (NP (DT the) (NN nature)) (PP (IN of) (NP (NP (DT those) (JJ biochemical) (NNS reactions)) (CC and) (NP (JJ cellular) (NNS interactions)))) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (ADJP (JJ essential) (PP (IN for) (NP (NP (DT the) (NN survival)) (PP (IN of) (NP (VBG living) (NNS cells))))))))))))) (CC and) (PP (IN for) (NP (NP (DT the) (VBG functioning)) (PP (IN of) (NP (JJ whole) (NNS organisms)))) (. .))))
To consider the nature of those biochemical reactions and cellular interactions which are essential for the survival of living cells and for the functioning of whole organisms.
(ROOT (S (NP (JJ Biochemical) (NNS reactions)) (VP (VBP take) (NP (NP (NN place)) (PP (IN inside) (NP (NP (DT the) (NNS organisms) (POS ')) (NNS cells))))) (. .)))