... enables further glucose import into the cell. Consequently, the PTS enables the cell to maintain a glu-cose concentration gradient through the membrane. The PTS also regulates the uptake of various ... closer to a SIM than the latter. Using these plots and having measured the concentration of EIIAÆP, the investigator can read the values of the remaining eight concentrations off the y-axes. For example, ... BioCentre, The University of Manchester, UK5 Netherlands Institute for Systems Biology, Amsterdam, The NetherlandsIntroduction The investigation of the function of molecularprocesses in cells,...