the activity of the metabolizing enzymes ( benzo ( a ) pyrene hydroxylase , aryl hydrocarbon hydroxylase ) increases during incubation with benzo ( a ) pyrene ( fig . 10 , 11 ) and is dependant on the concentration of benzo ( a ) pyrene in the growth medium ( fig . 12 ) .
C0005080
benzo ( a ) pyrene hydroxylase
C0003927
aryl hydrocarbon