Microorganisms and Disease Which is not a major defense mechanism in the stomach? Low pH Dense normal flora Proteolytic enzymes All of these Low pH Dense normal flora Proteolytic enzymes All of these ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Lactoferrin helps to protect against pathogens by sequestering Iron lowering the pH blocking sebum production facilitating the growth of normal flora sequestering Iron lowering the pH blocking sebum production facilitating the growth of normal flora 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
Microorganisms and Disease The influenza vaccine is administered each year because mutations in the viral hemagglutinin may allow the virus to evade the immune response elicited by previous vaccines it is a polysaccharide vaccine that does not confer long-term protection the vaccine is sufficiently toxic to make it necessary to administer only a small amount at any one time None of these mutations in the viral hemagglutinin may allow the virus to evade the immune response elicited by previous vaccines it is a polysaccharide vaccine that does not confer long-term protection the vaccine is sufficiently toxic to make it necessary to administer only a small amount at any one time None of these ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Immunization with which of the following toxoid induces high titer serum antibody, but does not protect from the corresponding disease? Tetanus Botulism Diphtheria Shigellosis Tetanus Botulism Diphtheria Shigellosis ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Pseudomembraneous colitis is precipitated by the use of certain antibiotics caused by a gram-positive bacterium caused by a spore-forming bacterium All of these precipitated by the use of certain antibiotics caused by a gram-positive bacterium caused by a spore-forming bacterium All of these ANSWER DOWNLOAD EXAMIANS APP
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