Microorganisms and Disease 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 survive within macrophages secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine activate T cells to proliferate and secrete cytokines survive the acid pH of the stomach survive within macrophages secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine activate T cells to proliferate and secrete cytokines survive the acid pH of the stomach ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of these cytokines is also known under the name cachectin? None of these Tumor necrosis factor (TNF) Interferon gamma Interleukin 2 None of these Tumor necrosis factor (TNF) Interferon gamma Interleukin 2 ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which is not a major defense mechanism in the stomach? Dense normal flora Proteolytic enzymes All of these Low pH Dense normal flora Proteolytic enzymes All of these Low pH ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease The agent responsible for causing mad cow disease is thought to be a fungus prion virus protozoan fungus prion virus protozoan ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease The "A" subunit of diphtheria toxin forms cAMP that leads to fluid accumulation lysis macrophages with the release of cytokines binds host cell receptors found on heart cells cause ADP ribosylation of a factor involved in protein synthesis forms cAMP that leads to fluid accumulation lysis macrophages with the release of cytokines binds host cell receptors found on heart cells cause ADP ribosylation of a factor involved in protein synthesis ANSWER DOWNLOAD EXAMIANS APP