Question

Type III secretion systems are used to inject "effector" proteins directly into a host cell. Salmonella uses a type III secretion system to help the pathogen to
A.survive the acid pH of the stomach
B. secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine
C. survive within macrophages
D. activate T cells to proliferate and secrete cytokines

Answer 1

i guess the answer is 'c'

Answer 2

Type III secretion systems are molecular machines used by many Gram-negative bacterial pathogens to inject proteins, known as effectors, directly into eukaryotic host cells. These proteins manipulate host signal transduction pathways and cellular processes to the pathogen's advantage.