Microorganisms and Disease Which of the following disease is caused by DNA viruses? Measles Poliomyelitis Small pox Yellow fever Measles Poliomyelitis Small pox Yellow fever ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following is true regarding anthrax? Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Anthrax is caused by a virus Inhalation Anthrax requires infection with a large number of spores Anthrax is highly contagious Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Anthrax is caused by a virus Inhalation Anthrax requires infection with a large number of spores Anthrax is highly contagious ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following is common in the disease caused by Coryne-bacterium diphtheriae and Bacillus anthracis? The most serious disease symptoms are the direct result of toxin action Diphtheria toxin and edema toxin are ADP ribosylating toxins Both organisms are gram-positive spore formers Both organisms cause skin and respiratory tract infections The most serious disease symptoms are the direct result of toxin action Diphtheria toxin and edema toxin are ADP ribosylating toxins Both organisms are gram-positive spore formers Both organisms cause skin and respiratory tract infections 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 a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP ADP ribosylation of guanylate cyclase that stimulates production of cGMP cleavage of rRNA that results in disruption of ribosome function ADP ribosylation of adenylate cyclase that stops production of cAMP ADP ribosylation of a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP ADP ribosylation of guanylate cyclase that stimulates production of cGMP cleavage of rRNA that results in disruption of ribosome function ADP ribosylation of adenylate cyclase that stops production of cAMP ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease The "A" subunit of diphtheria toxin binds host cell receptors found on heart cells lysis macrophages with the release of cytokines forms cAMP that leads to fluid accumulation cause ADP ribosylation of a factor involved in protein synthesis binds host cell receptors found on heart cells lysis macrophages with the release of cytokines forms cAMP that leads to fluid accumulation cause ADP ribosylation of a factor involved in protein synthesis 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 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 within macrophages survive the acid pH of the stomach 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 within macrophages survive the acid pH of the stomach ANSWER DOWNLOAD EXAMIANS APP
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