Microorganisms and Disease Which of the following is common in the disease caused by Coryne-bacterium diphtheriae and Bacillus anthracis? Both organisms cause skin and respiratory tract infections The most serious disease symptoms are the direct result of toxin action Both organisms are gram-positive spore formers Diphtheria toxin and edema toxin are ADP ribosylating toxins Both organisms cause skin and respiratory tract infections The most serious disease symptoms are the direct result of toxin action Both organisms are gram-positive spore formers Diphtheria toxin and edema toxin are ADP ribosylating toxins ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Plastic implants can pose a serious nosocomial infection problem because phagocytes have trouble engulfing bacteria embedded in a biofilm All of these infected implants usually have to be surgically removed phagocytes have trouble moving on the plastic surface phagocytes have trouble engulfing bacteria embedded in a biofilm All of these infected implants usually have to be surgically removed phagocytes have trouble moving on the plastic surface ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following is true regarding anthrax? Anthrax is highly contagious Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Inhalation Anthrax requires infection with a large number of spores Anthrax is caused by a virus Anthrax is highly contagious Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Inhalation Anthrax requires infection with a large number of spores Anthrax is caused by a virus 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 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 ADP ribosylation of adenylate cyclase that stops production of cAMP cleavage of rRNA that results in disruption of ribosome function 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 ADP ribosylation of adenylate cyclase that stops production of cAMP ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of these cytokines is also known under the name cachectin? Tumor necrosis factor (TNF) Interferon gamma Interleukin 2 None of these Tumor necrosis factor (TNF) Interferon gamma Interleukin 2 None of these ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which is not a major defense mechanism in the stomach? Dense normal flora Low pH Proteolytic enzymes All of these Dense normal flora Low pH Proteolytic enzymes All of these ANSWER DOWNLOAD EXAMIANS APP
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