Microbiology Course work

Scope of Microbiology and Introduction to Infectious Disease

1. Define the following terms:

Microbiology: __________________________________________________________________________

Microbe/microorganism: ________________________________________________________________

Acellular: ____________________________________________________________________________

Prokaryote: ___________________________________________________________________________

Eukaryote: _____________________________________________________________________________

2. What type of microbe(s) is/are acellular?

3. What type of microbe(s) is/are prokaryotic?

4. What type of microbe(s) is/are eukaryotic?

5. Which of the following is not a subject of investigation by microbiologists?
a. viruses
b. fungi
c. bacteria
d. algae
e. protozoa
f. All of the above are investigated by microbiologists
g. D and E are not agents investigated by microbiologists

6. Which of the following microorganisms lack a nucleus?
a. viruses
b. prions
c. bacteria
d. protozoa
e. fungi
f. All of the above have a nucleus
g. A, B & C lack nuclei
h. B & C lack nuclei

7. Define the following terms:

Bacteriology: _____________________________________________________________________________

Mycology: _______________________________________________________________________________

Protozoology: _______________________________________________________________________________

Parasitology: ________________________________________________________________________________

Virology: _______________________________________________________________________________

Immunology: _____________________________________________________________________________

Epidemiology: ____________________________________________________________________________

8. Which of the following is the correct way to write the name of an organism using binomial nomenclature?
a. Genus species
b. Genus species
c. Genus Species
d. Species genus

9. Identify the following individuals’ contribution(s) to the field of microbiology:

Robert Hook: _________________________________________________________________________

Anton van Leeuwenhoek: _______________________________________________________________

Louis Pasteur: ________________________________________________________________________

Robert Koch: _________________________________________________________________________

Ignaz Semmelweiss: ____________________________________________________________________

Joseph Lister: _________________________________________________________________________

10. Define the following terms:

Cell theory: ________________________________________________________________________________

Biogenesis theory: __________________________________________________________________________

Aseptic Technique: _________________________________________________________________________

Pure Culture: ______________________________________________________________________________

Germ theory: ______________________________________________________________________________

Etiology: __________________________________________________________________________________

11. What are Koch’s Postulates?

12. Are there limitations to Koch’s Postulates? If so, what are some examples?

13. Write a two examples of ways in which everyday life is affected by microbiology.

14. Define the following terms:

Microflora: ________________________________________________________________________________

Symbiosis: _________________________________________________________________________________

Mutualism: ________________________________________________________________________________

Commensalism: _____________________________________________________________________________

Parasitism: _________________________________________________________________________________

Colonization: ________________________________________________________________________________

15. Explain the difference between resident and transient microflora.

16. When does colonization of a human begin?

17. Normal flora are said to participate in microbial antagonism. Which of the following best describes microbial
antagonism?
a. When normal flora become invasive.
b. When normal flora occupy a niche on the body, thus preventing potentially more severe pathogens from occupying that same niche.
c. When the host immune system works to inhibit the growth of normal flora.
d. Microbial antagonism is just another term for ‘opportunistic infection.’

18. Define the following terms:

Pathogen: ___________________________________________________________________________________

Pathogenicity: ______________________________________________________________________________

Virulence: __________________________________________________________________________________

Infectious dose: ___________________________________________________________________________

Opportunistic disease: ________________________________________________________________________

Immunocompromised: _____________________________________________________________

Sign (give an example): ________________________________________________________________________

Symptom (give an example): ___________________________________________________________________

Local infection: ______________________________________________________________________________

Focal infection: _____________________________________________________________________________

Systemic infection: ___________________________________________________________________________

Septicemia: __________________________________________________________________________________

Bacteremia: _________________________________________________________________________________

Sepsis: ____________________________________________________________________________

Septic shock: ___________________________________________________________________________

19. Although members of the normal flora generally do not cause disease, under certain conditions they can become
opportunistic pathogens. When can normal flora become opportunistic pathogens?

20. Which of the following would be a sign?
a. Fever
b. Double vision
c. Nausea
d. Pain

21. When bacteria spread throughout the body via blood, but don’t replicate in transit, this is best described as:
a. Septicemia
b. Viremia
c. Toxemia
d. Bacteremia

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