Microorganisms and Disease
Plastic implants can pose a serious nosocomial infection problem because

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

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

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
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

ANSWER DOWNLOAD EXAMIANS APP