Microorganisms and Disease Lactoferrin helps to protect against pathogens by sequestering Iron lowering the pH facilitating the growth of normal flora blocking sebum production sequestering Iron lowering the pH facilitating the growth of normal flora blocking sebum production 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 survive the acid pH of the stomach survive within macrophages activate T cells to proliferate and secrete cytokines secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine survive the acid pH of the stomach survive within macrophages activate T cells to proliferate and secrete cytokines secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following characteristic of the Rotavirus was important for the construction of the Rotashield vaccine? The possession of a segmented RNA genome A limited number of capsule types The ability of monkey Rotavirus strains to cause serious illness (diarrhea) in human beings The ability of the Rotavirus to be transmitted faster The possession of a segmented RNA genome A limited number of capsule types The ability of monkey Rotavirus strains to cause serious illness (diarrhea) in human beings The ability of the Rotavirus to be transmitted faster ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Coxsackie virus B3, a subgroup of enteroviruses, commonly causes acute hemorrhagic conjunctivitis myocarditis muscular dystrophy gastroenteritis acute hemorrhagic conjunctivitis myocarditis muscular dystrophy gastroenteritis ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of these cytokines is also known under the name cachectin? Tumor necrosis factor (TNF) Interferon gamma None of these Interleukin 2 Tumor necrosis factor (TNF) Interferon gamma None of these Interleukin 2 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 ADP ribosylation of guanylate cyclase that stimulates production of cGMP ADP ribosylation of a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP cleavage of rRNA that results in disruption of ribosome function ADP ribosylation of adenylate cyclase that stops production of cAMP ADP ribosylation of guanylate cyclase that stimulates production of cGMP ADP ribosylation of a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP cleavage of rRNA that results in disruption of ribosome function ADP ribosylation of adenylate cyclase that stops production of cAMP ANSWER DOWNLOAD EXAMIANS APP
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