( ( ( Catalysis and ) ( Reaction Engineering ) ) . )
(ROOT (NP (NP (NP (NNS Catalysis)) (CC and) (NP (NNP Reaction) (NNP Engineering))) (. .)))
Catalysis and Reaction Engineering.
(ROOT (S (PP (RB Instead) (IN of) (NP (NN heat))) (, ,) (NP (NNS organisms)) (VP (VBP use) (S (NP (NNS catalysis)) (VP (TO to) (VP (VB speed) (PRT (RP up)) (NP (NNS reactions)))))) (. .)))
Instead of heat, organisms use catalysis to speed up reactions.