The Biology Project > Cell Biology > Cell Signaling > Problem Set

Cell Signaling Problem Set

Problem 5: Bacterial Cell Signaling

E.coli respond to increased solute concentrations by phosphorylation of the membrane receptor _______________, which transfers a phosphate to the subcellular second messenger ______________ that initiates transcription of the ___________ gene producing a protein that can prevent solute entry and preserve the osmotic integrity of the cell.
A.

EnvZ, OmpR, OmpF

The bacterial system that responds to changes in solute concentrations features many of the mechanisms that characterize multicellular eukaryote signaling systems.

B. OmpR, EnvZ, OmpF
C. OmpF, OmpR, EnvZ
D. OmpR, OmpF, EnvZ
E. OmpF, EnvZ, OmpR
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