Microorganisms and Disease
The "A" subunit of diphtheria toxin

binds host cell receptors found on heart cells
forms cAMP that leads to fluid accumulation
cause ADP ribosylation of a factor involved in protein synthesis
lysis macrophages with the release of cytokines

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
Both organisms are gram-positive spore formers
Both organisms cause skin and respiratory tract infections
Diphtheria toxin and edema toxin are ADP ribosylating toxins

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
Inhalation Anthrax requires infection with a large number of spores
Anthrax is caused by a virus
Anthrax is highly contagious

ANSWER DOWNLOAD EXAMIANS APP