how does the e. coli cell sense the glucose concentration and relay this information to the lac operon
a. The e. coli cell senses glucose concentration through the membrane-bound sensor kinase, which phosphorylates the response regulator protein. This phosphorylated response regulator then interacts with the lac operon to regulate gene expression.
b. The e. coli cell utilies an internal signaling molecule to sense glucose concentration, which then binds to a regulatory protein that interacts with the lac operon to regulate gene expression.
c. The e. coli cell utilies a two-component signaling system to sense glucose concentration, with the sensor protein directly interacting with the lac operon to regulate gene expression.
d. The e. coli cell senses glucose concentration through the utiliation of small regulatory RNAs, which then interact with the lac operon to regulate gene expression.