Microorganisms and Disease

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Microorganisms and Disease

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following disease is caused by DNA viruses?
A
Poliomyelitis
B
Yellow fever
C
Measles
D
Small pox
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The influenza vaccine is administered each year because
A
mutations in the viral hemagglutinin may allow the virus to evade the immune response elicited by previous vaccines
B
it is a polysaccharide vaccine that does not confer long-term protection
C
the vaccine is sufficiently toxic to make it necessary to administer only a small amount at any one time
D
none of the above
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Each of the 3 virulence factors of Bacillus anthracis i.e. the capsule, edema toxin and lethal toxin can affect the activity of
A
B cells
B
macrophages
C
ciliated epithelial cells
D
M cells
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes?
A
The pathogen contains mycolic acid in its cell wall
B
The pathogen can live inside macrophages
C
Antibodies to the pathogen are protective
D
None of these
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The toxins produced by bacteria
A
kill viruses
B
encourage bacterial reproduction
C
interfere with physiological processes in the body
D
all of the above
There are 5 questions to complete.