Toxins of Enterotoxic Gram-Negative Bacteria are Transferred Outside of the Cell

Question

Toxins of enterotoxic Gram-negative bacteria are transferred outside of the cell by
A) ATP-activated pores
B) GTP-coupled transporters
C) PBPs
D) Pili
E) Protein secretion systems

Accepted Answer

Depending on the bacteria, one of four types of protein secretion systems of the Gram-negative bacteria is responsible for transporting exotoxins to the outside of the cell.