Week 1 Review Qs — Exam 1

Question 1

H. influenza is often a secondary infection following__________.

Select one:

a. Staph infection
b. Tuberculosis infection
c. Strep infection
d. Viral flu

Answer 1

d. Viral flu

Question 2

Which of the following is the most virulent form of H. influenza?

Select one:

a. Hia
b. Hib
c. Hic
d. Hic

Answer 2

b. Hib

Question 3

What is the mode of transmission for H. influenza?

Select one:

a. respiratory
b. fecal-oral
c. sexual
d. vector

Answer 3

a. respiratory

Question 4

What is the most common and serious disease associated with H. influenza?

Select one:

a. genital lesions
b. lung infection
c. meningitis
d. ear infection

Answer 4

c. meningitis

Question 5

What is the disease caused by H. ducreyi?

Select one:

a. chancre
b. chancroid
c. genital herpes
d. chagoma

Answer 5

b. chancroid

Question 6

How does the lesion caused by H. ducreyi present?

Select one:

a. as a hard, spherical lesion
b. as a hard, ragged lesion
c. as a soft, spherical lesion
d. as a soft, ragged lesion

Answer 6

d. as a soft, ragged lesion

Question 7

What is the major diagnostic indicator of a G. vaginalis infection?

Select one:

a. clue cells
b. green discharge
c. ulcers
d. swelling

Answer 7

a. clue cells

Question 8

B. pertussis has a number of virulence factors. Which of these leads to ciliary stasis?

Select one:

a. FHA (filamentous hemagglutinin)
b. LPS (lipopolysaccharide)
c. cAMP (cyclic AMP)
d. adenylate cyclase

Answer 8

a. FHA (filamentous hemagglutinin)

Question 9

What stage of pertussis is characterized by a “whooping” cough?

Select one:

a. catarrhal
b. paroxysmal
c. incubation
d. recovery

Answer 9

b. paroxysmal

Question 10

What type of vaccine is currently used in the U.S. to prevent pertussis?

Select one:

a. acellular subunit vaccine
b. whole cell vaccine
c. live attenuated vaccine
d. inactivated vaccine

Answer 10

a. acellular subunit vaccine

Question 11

Which of the following is a common mode of transmission for Brucella sp.?

Select one:

a. Drinking contaminated milk
b. Sexual activity
c. Injection
d. Eating contaminated food

Answer 11

a. Drinking contaminated milk

Question 12

Which of the following occupations is most at risk of acquiring a Brucella sp. infection?

Select one:

a. Miner
b. Veterinarian
c. Lab worker
d. Radiologist

Answer 12

b. Veterinarian

Question 13

An infection acquired directly from a non-human animal is termed a(n)____________.

Select one:

a. commensal infection
b. parasitic infection
c. symbiotic infection
d. zoonotic infection

Answer 13

d. zoonotic infection

Question 14

What is the most common vector of F. tularensis?

Select one:

a. louse
b. mite
c. tick
d. mosquito

Answer 14

c. tick

Question 15

Tularemia is a risk for which of the following groups of people?

Select one:

a. construction workers
b. hunters
c. soldiers
d. pregnant women

Answer 15

b. hunters

Question 16

Ulceroglandular tularemia is a type of tularemia that is received through

Answer 16

Tick bite

Question 17

Pneumonic tularemia is a type of tularemia that is received through

Answer 17

Inhalation

Question 18

Oculoglandular tularemia is a type of tularemia that is received through

Answer 18

Auto inoculation

Question 19

Typhoidal tularemia is a type of tularemia that is received through

Answer 19

Ingestion

Question 20

What is a mycolic acid?

Select one:

a. a nucleic acid
b. a fatty acid
c. a carbohydrate
d. a sulfuric acid

Answer 20

b. a fatty acid

Question 21

How often does a M. tuberculosis cell divide?

Select one:

a. every 10 minutes
b. every 20 minutes
c. every 24 hours
d. every 72 hours

Answer 21

c. every 24 hours

Question 22

How does a sulfatide affect the virulence of M. tuberculosis?

Select one:

a. it acts as an adjuvant
b. it inhibits the delayed hypersensitivity response
c. it inhibits locomotion of macrophages
d. it inhibits lysosomes in macrophages

Answer 22

d. it inhibits lysosomes in macrophages

Question 23

What is the most common mode of transmission of M. tuberculosis?

Select one:

a. respiratory
b. sexual
c. vector
d. fecal-oral

Answer 23

a. respiratory

Question 24

A patient that is co-infected with M.tuberculosis and ________ is at increased risk of death due to tuberculosis

Select one:

a. Hepatitis A
b. Botulism
c. HIV
d. Malaria

Answer 24

c. HIV

Question 25

Which immune cell definitely destroys a M. tuberculosis cell?

Select one:

a. naive macrophage
b. activated macrophage
c. natural killer cell
d. B cell

Answer 25

b. activated macrophage

Question 26

What is the major difference between a naive (resting) macrophage and an activated macrophage?

Select one:

a. number of lysosomes
b. amount of rough ER
c. number of mitochondria
d. amount of smooth ER

Answer 26

a. number of lysosomes

Question 27

Individuals that are experiencing no symptoms despite being infected with M. tuberculosis are said to have __________________.

Select one:

a. primary tuberculosis infection
b. secondary tuberculosis infection
c. atypical tuberculosis infection
d. latent tuberculosis infection

Answer 27

d. latent tuberculosis infection

Question 28

What is the most common site of secondary (reactivation) tuberculosis?

Select one:

a. lungs
b. skin
c. spine
d. joints

Answer 28

a. lungs

Question 29

Potts disease is tuberculosis of the _______________.

Select one:

a. lungs
b. skin
c. spine
d. joints

Answer 29

c. spine