Enzyme MatchingOnline version enzyme matching by kenneth thomas 1 Group 1 2 Group 2 3 Group 3 4 Group 4 5 Group 5 6 Group 6 7 Group 7 8 Group 8 9 Group 9 10 Group 10 11 Group 11 12 Group 12 function of enzymes catalyze reaction catabolic reactions release energy anabolic reactions require energy cofactors coenzymes holoenzyme enzyme+cofactor Apoenzyme enzyme minus cofactor limits kreb's isocitrate regulatory site allosteric inactive protien zymogen increases rate more substrate more product slows reaction substrate reactant