If glucose is available in the environment of E. coli, the cell responds with a very low concentration of cAMP. When the cAMP increases in concentration, it binds to CAP. Which of the following would you expect to be a measurable effect?
A) decreased concentration of the lac enzymes
B) increased concentration of the trp enzymes
C) decreased binding of the RNA polymerase to sugar metabolism-related promoters
D) decreased concentration of alternative sugars in the cell
E) increased concentrations of sugars such as arabinose in the cell
animal cell
Cell Fractionation
3D image of a melanoma cell
Regulation of E. coli GS by covalent modification
Plant Cell
Depiction of cell transformations in isotonic, hypertonic, and hypotonic solutions