Microbiology Practice Test 2

Question 1

1. Which of the following is the most common cause of osteomyelitis?
   a. Staph. Aureus
   b. Strep. Pyogenes
   c. Clostridium perfringes
   d. Bacillus anthracis

Answer 1

a. Staph. Aureus

Question 2

2. According to the health people 2010, what type of exercise is recommended to reduce the top causes of death in the U.S.?
   a. Aerobic exercise for 30 mins
   b. Aerobic exercise for 1hr.
   c. Anaerobic exercise for 30 mins
   d. Anaerobic exercise for 1hr

Answer 2

a. Aerobic exercise for 30 mins

Question 3

3. Which of the following is not a leading health indicator of healthy people 2010?
   a. Injury and violence
   b. Obesity and overweight
   c. Physical activity
   d. Hygiene

Answer 3

d. Hygiene

Question 4

4. What makes an obligate anaerobe not tolerant to O2?
   a. Does not contain superoxide dismutase
   b. Does not contain glutathione
   c. Does not contain lysozyme
   d. Does not contain transpeptidase

Answer 4

a. Does not contain superoxide dismutase

Question 5

5. Which of the following attaches to the intestinal mucosa of the large intestine?
   a. IgG
   b. IgM
   c. IgA
   d. IgE

Answer 5

c. IgA

Question 6

6. Which of the following is found in breast milk?
   a. IgG
   b. IgM
   c. IgA
   d. IgE

Answer 6

c. IgA

Question 7

7. The antigen presenting cell is the ______.
   a. Macrophage
   b. Neutrophil
   c. Basophil
   d. Lymphocyte

Answer 7

a. Macrophage

Question 8

8. The addition of aluminum salts occurs during which of the following stages of water purification?
   a. Sedimentation
   b. Sludge digestion
   c. Aeration
   d. Flocculation

Answer 8

d. Flocculation

Question 9

9. During the flocculation step, which of the following is removed?
   a. Suspended solids
   b. Bacteria
   c. Oxygen
   d. Chlorine

Answer 9

a. Suspended solids

Question 10

10. Which of the following causes a hydatid cyst?
    a. Taenia solium
    b. Taenia saginata
    c. Echinococcus granulosus
    d. Diphyllobothrium latum

Answer 10

c. Echinococcus granulosus

Question 11

11. What is the most common helminthic infection world wide?
    a. Schistosoma
    b. Enterobius vermicularis
    c. Ascaris lumbricoides
    d. Necator americanus

Answer 11

c. Ascaris lumbricoides

Question 12

12. Which of the following is the leading cause of death from a Helminth?
    a. Schistosoma
    b. Enterobius vermicularis
    c. Ascaris lumbricoides
    d. Necator americanus

Answer 12

a. Schistosoma

Question 13

13. Which of the following is characterized by anal itching?
    a. Necator americanus
    b. Ascariasis lumbricoides
    c. Taenia saginata
    d. Enterobius vermicularis

Answer 13

d. Enterobius vermicularis

Question 14

14. The case of whipworm is:
    a. Trichuris trichura
    b. Trichinella spiralis
    c. Wuchereria bancrofti
    d. Loa Loa

Answer 14

a. Trichuris trichura

Question 15

15. Which of the following causes a loss of pigmentation in the distal extremity?
    a. Tinea pedis
    b. Tinea cruris
    c. Acanthosis nigricans
    d. Tinea versicolor

Answer 15

d. Tinea versicolor

Question 16

16. Of the following, ______ is not associated with Rickettsia’s.
    a. Scrub typhus
    b. Epidemic typhus
    c. Typhoid fever
    d. Trench fever

Answer 16

c. Typhoid fever

Question 17

17. Toxic shock syndrome is most commonly caused by:
    a. Staph. Aureus
    b. Strep. Pyogenes
    c. Neisseria gonorrhea
    d. Chlamydia trachomatis

Answer 17

a. Staph. Aureus

Question 18

18. Streptococcus pyogenes does not cause:
    a. Rheumatic fever
    b. Glomerulonephritis
    c. Carbuncle
    d. Scarlet fever

Answer 18

c. Carbuncle

Question 19

19. The number one cause of atypical pneumoniae is: a. Streptococcus pneumoniae
    b. Mycoplasma pneumoniae
    c. Ligionella pneumoniae
    d. Klebsiella pneumoniae

Answer 19

b. Mycoplasma pneumoniae

Question 20

20. The common cold is caused by:
    a. Cytomegalovirus
    b. Rhinovirus
    c. Influenza
    d. Respiratory syncytial virus

Answer 20

b. Rhinovirus

Question 21

21. Which virus is transmitted by mosquitoes?
    a. Adenovirus
    b. Polio
    c. Arbovirus
    d. Papillomavirus

Answer 21

c. Arbovirus

Question 22

22. Which of the following is not a gram positive organism?
    a. Staph. Aureus
    b. Strep. Viridans
    c. Bacillus anthracis
    d. Neisseria gonorrhea

Answer 22

d. Neisseria gonorrhea

Question 23

23. Which of the following are classified as acid fast microorganisms?
    a. Streptococcus
    b. Staphylococcus
    c. Treponema
    d. Mycobacterium

Answer 23

d. Mycobacterium

Question 24

24. What type of medium is used to isolate gonorrhea?
    a. Sabouraud agar
    b. Thayer martin agar
    c. MacConkey agar
    d. Mannitol salt agar

Answer 24

b. Thayer martin agar

Question 25

25. Which of the following is urease positive? a. Neisseria gonorrhea b. Staphylococcus aureus c. Streptococcus mutans d. Helicobacter pylori

Answer 25

d. Helicobacter pylori

Question 26

26. If you see a green ring around a colony on a blood agar plate, this indicates: a. No hemolysis b. Complete hemolysis c. Partial hemolysis d. Antibiotic resistance

Answer 26

c. Partial hemolysis

Question 27

27. Which of the following is not caused by prions? a. Creutzfeld Jacob disease b. Mad cow disease c. Lymes disease d. Scrampie

Answer 27

c. Lymes disease

Question 28

28. The leading cause of botulism is: a. Not cooking your beef b. Not cooking home canned vegetables c. Not cooking your eggs d. Not refrigerating your deli meats

Answer 28

b. Not cooking home canned vegetables

Question 29

29. Koplik spots are seen in which of the following? a. Red measles b. German measles c. Mumps d. Varicella

Answer 29

a. Red measles

Question 30

30. Which of the following has an exotoxin that is heat liable? a. Staphylococcus aureus b. E. coli c. Botulism d. Neisseria meningitidis

Answer 30

c. Botulism

Question 31

31. Contact dermatitis is classified as a ______ hypersensitivity reaction. a. Type I b. Type II c. Type III d. Type IV

Answer 31

d. Type IV

Question 32

32. Lupus is classified as a(n) ______ hypersensitivity reaction. a. Immediate b. Cytotoxic c. Immunocomplex d. Delayed

Answer 32

c. Immunocomplex

Question 33

33. Glomerulonephritis is classified as a ______ hypersensitivity reaction. a. Type I b. Type II c. Type III d. Type IV

Answer 33

c. Type III

Question 34

34. If a person has a ______ infection and you give them aspirin, it can cause Reyes syndrome. a. Mumps b. Measles c. Chicken pox d. Rubella

Answer 34

c. Chicken pox

Question 35

35. ______ is an example of passive immunity. a. Injection of vaccine b. Injection of bacterial capsule c. Injection of antitoxin d. Injection of toxoid

Answer 35

c. Injection of antitoxin

Question 36

36. What is the immediate treatment to a person with active tetanus? a. Administer antitoxin b. Administer antibiotic c. Debridement of wound d. Observe for 24hrs

Answer 36

a. Administer antitoxin

Question 37

37. Which of the following do you use to visualize spirochetes better? a. Coliform count b. Dark field microscope c. Woods lamp d. Tzanck test

Answer 37

b. Dark field microscope

Question 38

38. With hayfever, what is the immunoregulatory cell? a. IgE b. IgA c. IgG d. IgM

Answer 38

a. IgE

Question 39

39. What is tetanus caused by? a. Virus b. Bacteria c. Prion d. Fungus

Answer 39

b. Bacteria

Question 40

40. Which of the following is not an effective antimalarial? a. Mosquito spraying b. Antimalarial drugs c. Vaccine d. Mosquito control

Answer 40

c. Vaccine

Question 41

41. Which of the following is irritated by ozone? a. Asthma b. Rheumatoid arthritis c. Episcleritis d. High blood pressure

Answer 41

a. Asthma

Question 42

42. Which of the following con rock quarry workers get? a. Silicosis b. Siderosis c. Asbestosis d. Byssinosis

Answer 42

a. Silicosis