Help with Microbiology.?

Help with Microbiology.?
1.Mutalism discribes which microbe-host relationship?

a.The microbe benefits to the detriment of the host.
b.The microbe benefits the from the relationship but their is no obvious benefit to the host.
c.The microbe benefits the host only when it feels like it.
d.Both the microbe and host benefit from the relationship.

2.Which of the following can be eliminated and still have an infectious disease develop?

a.Vitamin C deficiency
b.An immune response
Stalemate between the pathogen and the immune system

d.Contact with the pathogen
e.Injury to tissues

3.Which of the following terms is basically the same as "pathogen"?

c.Opportunitistic pathogen

4.The part of the chain of transmission in a HAI is

a.high prevalance of pathogens.
b.high number of compromised hosts.
c.efficient methods of transmission.
d.All of the above

5.Which stage of disease development is NOT seen in every disease?

a.Incubation period
b.Acme period
c.Period of decline
d.Prodromal phase
e.Period of convalescence

6.Which of the following is NOT considered a transient organism of the epidermis on your hands

a.Staphylococcus epidermidis
b.Penicillium spores
c.E. coli (either the bacterium or the protist)
d.Bacillus subtilis endospores
What is/are the most likely mode(s) of transmission within a hospital?

a.Person-to-person airborne
b.Respiratory droplets
c.Hand contact
d.Contact with contaminated fomites
e.All of the above

8.Which of the following disease causing microbes has the lowest virulence?

a.Rickettsia prowazekii
b.Influenza A H1NI
d.Entamoeba coli

9.Cold sores caused by herpes simplex virus would be an example of _____________ disease.


10.Which of the following is an example of a primary infection followed by a secondary infection?

a.Boils caused by Staphylococcus aureus in a patient hospitalized for leukemia.
b.Encephalomeningitis caused by Cryptococcus in an AIDS patient.
c.Severe diarrhea caused by Clostridium difficile in nursing home patients.
d.Vaginitis caused by Candidia albicans following oral antibiotics.

10.Which of the following is an example of an opportunistic pathogen?

a.Toxoplasma crossing the placenta from an infected mother to the fetus.
Clostridium tetani entering deep tissues of the foot through a nail puncture.

c.Rhinovirus moving from an unwashed finger to the mucosa of the eye.
d.Staph. epidermidis colonizing a surgically inserted dialysis connection.

11.Hyaluronidase performs which of the following?

a.Destroys circulating neutrophils and tissue macrophages, preventing phagocytosis.
b.Prevents phagocytes from phagocytosing the bacteria that produce it.
c.Breaks down the macromolecule that holds cells together, allowing the bacteria that produce it to penetrate tissues.
d.Forms clots around the pathogen that produces it, hiding the pathogen from the immune system.
e.Breaks clots from the inside, allowing pathogens to escape the clot.

- James

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