Microorganisms and Disease Which is not a major defense mechanism in the stomach? All of these Proteolytic enzymes Dense normal flora Low pH All of these Proteolytic enzymes Dense normal flora Low pH ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes? None of these The pathogen can live inside macrophages The pathogen contains mycolic acid in its cell wall Antibodies to the pathogen are protective None of these The pathogen can live inside macrophages The pathogen contains mycolic acid in its cell wall Antibodies to the pathogen are protective ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Cholera toxin is an A-B type toxin in which the B portions bind to a receptor on a host cell and the A portion enters the cell to cause cleavage of rRNA that results in disruption of ribosome function ADP ribosylation of a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP ADP ribosylation of adenylate cyclase that stops production of cAMP ADP ribosylation of guanylate cyclase that stimulates production of cGMP cleavage of rRNA that results in disruption of ribosome function ADP ribosylation of a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP ADP ribosylation of adenylate cyclase that stops production of cAMP ADP ribosylation of guanylate cyclase that stimulates production of cGMP ANSWER DOWNLOAD EXAMIANS APP
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 secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine survive the acid pH of the stomach activate T cells to proliferate and secrete cytokines survive within macrophages secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine survive the acid pH of the stomach activate T cells to proliferate and secrete cytokines survive within macrophages ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following disease is not caused by microbial protein toxin? Tuberculosis Shigella dysentery Diphtheria Botulism Tuberculosis Shigella dysentery Diphtheria Botulism ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease The "A" subunit of diphtheria toxin binds host cell receptors found on heart cells cause ADP ribosylation of a factor involved in protein synthesis lysis macrophages with the release of cytokines forms cAMP that leads to fluid accumulation binds host cell receptors found on heart cells cause ADP ribosylation of a factor involved in protein synthesis lysis macrophages with the release of cytokines forms cAMP that leads to fluid accumulation ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS