The peptidoglycan in bacterial cell walls is built in part by penicillin-binding proteins. (PBPs). What is the normal function of these PBPs?

Beta lactam antibiotics disrupt peptidoglycan synthesis by binding to the bacterial enzyme necessary for peptide bond formation between TPCS of different PG layers.

Which are the Advantages of the lactose system in E. coli?

Choose the statement that best describes how proteins move between different compartments within the secretory and endocytic pathways. O A. proteins exit their primary location via translocators and are transported to their next destination by SRP B. proteins are directly translated into the cellular compartment that will serve as their final destination O C. proteins are packaged in vesicles that bud out of one membrane and fuse with the membrane at the next destination O D. proteins diffuse through the membrane where they originated and are bound by chaperones who transport them to their next destination