the coutilization of the two sugars was most likely possible because ( i ) invertase was insensitive to catabolite repression by glucose , ( ii ) the activity and affinity of the glucose transport system were lowered when sucrose was included in the growth medium , and ( iii ) the activity of the glucose uptake system was also subject to repression by high concentrations of glucose itself .
C0242209
sugars
C0038636
sucrose