Chapter 5 Test With Answer

Front 1

The Enterobacteriaceae are members of the bacterial phylum:
a. Chlamydiae.
b. Firmicutes.
c. Proteobacteria.
d. Spirochetes.
e. Actinobacteria

Back 1

Proteobacteria

Front 2

Which of the following is the term for antigenic structures on enteric bacteria used for adhering to surfaces?
a. H antigen
b. K antigen
c. O antigen
d. V antigen

Back 2

k antigen

Front 3

The intracellular parasite __ is transmitted by the bite of a hard tick. Infection begins with acute fever and chills followed by a rash which first appears on the wrists and ankles.
a. Borrelia burgdorferi
b. Coxiella burnetii
c. Francisella tularensis
d. Rickettsia rickettsii
e. Treponema pallidum

Back 3

Rickettsia rickettsii

Front 4

A potentially fatal central nervous system infection by the aerobic Gram-negative diplococcus __ is often accompanied by a "petechieal" rash which may progress to necrosis of the extremities.
a. Haemophilus influenzae
b. Mycoplasma pneumoniae
c. Neisseria meningitidis
d. Pseudomonas aeruginosa
e. Yersinia pestis

Back 4

Neisseria meningitidis

Front 5

The curved, motile, urease (+) Gram-negative bacterium __ is commonly found in the human stomach and contributes to both peptic ulcers and stomach cancer.
a. Campylobacter jejuni
b. Helicobacter pylori
c. Klebsiella pneumoniae
d. Proteus mirabilis
e. Vibrio cholerae

Back 5

Helicobacter pylori

Front 6

Members of the Enterobacteriaceae that ferment lactose are called _____.
a. capneic
b. coliforms
c. non-coliforms
d. nonmotile
e. fastidious

Back 6

coliforms

Front 7

Traveler's diarrhea is primarily the result of exposure to new strains of the Gram-negative coliform:
a. Camplylobacter jejuni
b. Escherichia coli
c. Klebsiella pneumoniae
d. Salmonella species
e. Serratia marcescens

Back 7

Escherichia coli

Front 8

Inhalation of aerosols containing the intracellular parasite __, commonly found in fresh water biofilms, may result in severe respiratory infections in persons who are heavy smokers.
a. Haemophilus influenzae
b. Klebsiella pneumoniae
c. Legionella pneumophilia
d. Mycoplasma pneumoniae
e. both B and D.

Back 8

Legionella pneumophilia

Front 9

Asymptomatic carriers of the motile enteric pathogen ___ have chronic infections of the gall bladder, from which the bacilli are spread by fecal contamination to cause an invasive gastroenteritis.
a. Chlamydia trachomatis
b. Escherichia coli
C. Proteus mirabilis
d. Salmonella typhi
e. Yersinia pestis

Back 9

Salmonella typhi

Front 10

The zoonosis known a tularemia is acquired by:
a. ingestion.
b. inhalation.
c. contact.
d. vector transmission.
e. all of these

Back 10

all of these

Front 11

The bacterium __ is a member of the Firmicutes and is the cause of primary atypical pneumonia which is often diagnosed by the appearance of a small blister on the ear drum.
a. Haemophilus influenzae
b. Neisseria meningitidis
c. Mycoplasma pneumoniae
d. Serratia marcescens
e. None of these

Back 11

Mycoplasma pneumoniae

Front 12

The Gram-negative true human pathogen coccobacillus ___ poisons the cells of the respiratory tract, leading to spasms of coughing which leave the young victim anoxic and fatigued, and may result in death.
a. Bordetella pertussis
b. Francisella tularensis
c. Klebsiella pneumoniae
d. Legionella pneumophilia
e. Pseudomonas aeruginosa

Back 12

Bordetella pertussis

Front 13

The sexually transmitted spirochete __ is a true human pathogen which causes a disease with three distinct symptomatic stages and asymptomatic periods of varying length.
a. Chlamydiae trachomatis
b. Coxiella burnetii
c. Serratia marcescens
d. Neisseria gonorrhoeae
e. Treponema pallidum

Back 13

Treponema pallidum

Front 14

The non-motile coliform ___ has a large glycocalyx (capsule) and is a common cause of nosocomial infections.
a. Klebsiella pneumoniae
b. Haemophilus influenzae
c. Escherichia coli
d. Legionella pneumophilia
e. Mycoplasma pneumoniae

Back 14

Klebsiella pneumoniae

Front 15

Acute bacterial meningitis in very young children and the elderly is caused by infection with the pleomorphic, fastidious Gram-negative bacterium:
a. Serratia marcesens.
b. Coxiella burnetii.
c. Haemophilus influenzae.
d. Klebsiella pneumoniae.
e. Neisseria meningitidis

Back 15

Haemophilus influenzae.

Front 16

The micro-aerophilic curved bacterium ___ causes gastroenteritis accompanied by a frequent diarrhea that may be bloody. A common source of infection is undercooked poultry.
a. Camplylobacter jejuni
b. Helicobacter pylori
c. Proteus mirabilis
d. Salmonella typhi
e. Vibrio cholerae

Back 16

campylobacter jejuni

Front 17

The highly motile non-coliform __ is an opportunistic pathogen responsible for urinary tract infections accompanied by the formation of renal stones.
a. Klebsiella pneumoniae
b. Shigella
c. Proteus mirabilis
d. Salmonella typhi
e. Vibrio cholerae

Back 17

Proteus mirabilis

Front 18

The obligate intracellular parasite ___ causes sexually transmitted disease which is frequently asymptomatic in women, but usually causes nongonococcal urethritis in men.
a. Bordetella pertussis
b. Chlamydia trachomatis
c. Klebsiella pneumoniae
d. Neisseria gonorrhoeae
e. Treponema pallidum

Back 18

Chlamydia trachomatis

Front 19

The motile coliform ___ causes opportunistic disease in immunocompromised persons. In laboratory tests it is often recognized by the production of a distinctive pigment.
a. Escherichia coli
b. Pseudomonas aeruginosa
c. Proteus mirabilis
d. Serratia marcescens
e. Legionnella pneumophilia

Back 19

Serratia Marcescens

Front 20

The spirochete ___ is transmitted by tick bite and causes a disease characterized by a distinctive rash and can progress to chronic muscle and joint pain, and cardiovascular problems
a. Borrelia burgdorferi
b. Campylobacter jejuni
c. Coxiella burnetii
d. Serratia marcescens
e. Rickettsia rickettsii

Back 20

Borrelia burgdorferi

Front 21

The intestinal infection characterized by diarrhea known as "rice-water stools" is:
a. bacillary dysentery.
b. cholera.
c. Salmonellosis.
d. typhoid fever.
e. shigellosis.

Back 21

Cholera

Front 22

The normal habitat for the bacterium ____ is rodents and their fleas. Humans contract the infection by flea bite, and, if untreated, develop necrotic lymph nodes or subcutaneous hemorrhage before succumbing.
a. Bordetella pertussis
b. Francisella tularensis
c. Salmonella species
d. Rickettsia rickettsii
e. Yersinia pestis

Back 22

Yersinia pestis

Front 23

The non-motile, non-coliform Gram-negative bacillus ___ is a true human pathogen which produces a toxin that causes severe dysentery.
a. Campylobacter jejuni
b. Escherichia coli
c. Klebsiella pneumoniae
d. Shigella
e. Serratia marcescens

Back 23

Shigella

Front 24

People who work around livestock are at risk of pulmonary infections with the intracellular parasite ___, which can be diagnosed by characteristic lesions in the lungs.

Back 24

Coxiella burnetti

Front 25

Motile non-coliforms of the genus ___ are commonly found in the intestines of a variety of vertebrates and often cause gastroenteritis in children who handle reptile or rodent pets.
a. Vibrio
b. Salmonella
c. Proteus
d. Yersinia
e. Camplylobacter

Back 25

Salmonella

Front 26

E. coli strain O157:H7 is responsible for cases of ___, resulting from eating undercooked beef contaminated with it.
a. bacillary dysentery
b. hemorrhagic colitis
c. peptic ulcers
d. shigellosis
e. tularemia

Back 26

hemorrhagic colitis

Front 27

"Capneic" bacteria can grow:
a. only in the absence of oxygen.
b. only at refrigerator temperatures.
c. in the presence of bile salts.
d. only on chocolate agar.
e. in the presence of high levels of carbon dioxide.

Back 27

in the presence of high levels of carbon dioxide.

Front 28

Which of the following human diseases is not vaccine preventable?
a. acute bacterial meningitis
b. chlamydia
c. meningococcal meningitis
d. typhoid fever
e. whooping cough

Back 28

chlamydia

Front 29

Patients with severe burns often suffer bacteremia caused by the common environmental contaminant __ that is often difficult to prevent since soaps and disinfectants are often ineffective in killing it.
a. Chlamydiae trachomatis
b. Treponema pallidum
c. Pseudomonas aeruginosa
d. Klebsiella pneumoniae
e. Yersinia pestis

Back 29

Pseudomonas aeruginiosa

Front 30

Which of the following is NOT a zoonosis?
a. rabbit fever
b. Q fever
c. typhoid fever
d. Rocky Mountain Spotted fever.
e. Salmonellosis.

Back 30

typhoid fever

Front 31

Fecal contamination may be indicated by detecting the presence of:
a. coliforms.
b. capsules.
c. capneic bacteria.
d. vibrios.
e. spirochetes.

Back 31

coliforms

Front 32

Which of the following members of the Enterobacteriaceae is a true human pathogen?
a. E. coli
b. Klebsiella pneumoniae
c. Salmonella typhi
d. Serratia marcescens
e. All of these are.

Back 32

salmonella typhi

Front 33

Bacteria spread as an STD are responsible for causing:
a. lyphogranuloma venereum.
b. Lyme disease.
c. opthalmia neonatorum.
d. Pontiac fever.
e. both a and c.

Back 33

lyphogranuloma venereum
opthalmia neonatorum

Front 34

The activity of ___ bacterial enzyme is currently used to diagnose infection leading to peptic ulcers.
a. urease
b. oxidase
c. catalase
d. hyaluronidase
e. coagulase

Back 34

Urease

Front 35

Which of the following is not effective in treating walking pneumonia?
a. erythromycin
b. penicillin
c. quinolines
d. sulfonamides
e. tetracycline

Back 35

penicillin

Front 36

Bacteria with a thin peptidoglycan wall and an outer membrane are purple when Gram-stained.
True or false

Back 36

false

Front 37

The fastidious Gram-negative diplococcus __ is transmitted by intimate contact and is frequently asymptomatic in infected women but may result in pelvic inflammatory disease if untreated.
a. Treponema pallidum
b. Neisseria gonorrhoeae
c. Chlamydia trachomatis
d. Borrelia burgdorferi
e. Shigella

Back 37

Neisseria Gonorrhoeae

Front 38

The intracellular parasite coccobacillus ___ may be contracted by contact with wild animals or insect bite. The infection can be established by as few as 10 bacteria and requires lengthy treatment for clearance.
a. Bordetella pertussis
b. Chlamydia trachomatis
c. Francisella tularensis
d. Yersinia pestis
e. Vibrio cholerae

Back 38

Francisella tularensis

Front 39

The Gram-negative motile curved bacterium ____ is free-living in both fresh and mildly salty water, but when ingested in huge numbers it causes a secretory diarrhea that leads to rapid dehydration.
a. Helicobacter pylori
b. Proteus mirabilis
c. Salmonella
d. Shigella
e. Vibrio cholerae

Back 39

Vibrio cholerae

Front 40

The sexually transmitted Gram-negative pathogen ___ can cross the placenta and infect the developing fetus.
a. Chlamydia trachomatis
b. Haemophilus influenzae
c. Neisseria gonorrhoeae
d. Treponema pallidum
e. All of the above.

Back 40

Treponema pallidu

Front 41

A human bitten by a tick may become ill with:
a. Q fever
b. Lyme disease
c. Shigellosis
d. Black Death
e. Both A and D.

Back 41

Lyme disease

Front 42

Bacteria described as "fastidious" require ___ for survival in the laboratory.
a. chocolate agar
b. high levels of carbon dioxide
c. EMB agar
d. charcoal extract-containing agar
e. the absence of oxygen

Back 42

chocolate agar

Front 43

One strain of the enteric bacterium ___, named for its antigenic characteristics, is part of the intestinal flora of cattle, but can produce life-threatening kidney failure (HUS) in humans who eat undercooked contaminated meat.
a. Campylobacter
b. Escherichia coli
c. Salmonella typhi
d. Serratia marcescens
e. Shigella

Back 43

escherichia coli

Front 44

Administration of an erythromycin solution to newborns' eyes is effective in preventing blindness due to ocular infections with:
a. Chlamydiae trachomatis
b. Coxiella burnetii
c. Neisseria gonorrhoeae
d. Treponema pallidum
e. Both A and C.

Back 44

chlamydiae trachomatis
neisseria gonorrhoeae

Front 45

Which of the following zoonoses has/have been reported in the Texas Panhandle in recent years?
a. Bubonic Plague
b. Salmonellosis
c. Q fever
d. Rabbit fever
e. All of these

Back 45

all of these

Front 46

The normal habitat of enteric bacteria is:
a. skin
b. soil
c. intestines
d. water
e. urinary tract.

Back 46

intestines

Front 47

Which class of antigen is found only on members of the Enterobacteriaceae which have flagella?
a. O antigen
b. H antigen
c. K antigen
d. V antigen

Back 47

h antigen

Front 48

The gram-negative coccobacillus that causes whooping cough is:
a. Bordetella pertussis
b. Escherichia coli
c. Haemophilus influenzae
d. Legionella pneumophilia
e. Salmonella typhi

Back 48

Bordetella pertussis

Front 49

The Gram-negative fastidious diplococcus which is transmitted by close contact and causes urethritis in most infected males is:
a. Yersinia pestis.
b. Treponema pallidum.
c. Neisseria gonorrhoeae.
d. Chlamydiae trachomatis.
e. Haemophilus influenzae

Back 49

Neisseria gonorrhoeae

Front 50

People who have close contact with rabbits or rodents are at risk of infection with the Gram-negative intracellular parasite __ that can be contracted in a variety of ways.
a. Borrelia burgdorferi
b. Campylobacter jejuni
c. Fransicella tularensis
d. Rickettsia rickettsii
e. Vibrio cholerae

Back 50

Fransicella tularensis

Front 51

A teenager is admitted to the E.R. dehydrated with severe diarrhea, cramping and fever. His stool is very watery with a milky appearance known as "rice water" stool. What bacterium is the likely culprit?
a. Vibrio cholerae
b. Helicobacter pylori
c. Shigella
d. Escherichia coli
e. Yersinia pestis

Back 51

Vibrio cholerae

Front 52

Question 1 (1 point)
The normal habitat of enteric bacteria is:

Student response: Correct
Response Student
Response Answer Choices
a. skin
b. soil
c. intestines
d. water
e. urinary tract.



Score: 1 / 1

Question 2 (1 point)
Which class of antigen is found only on members of the Enterobacteriaceae which have flagella?

Student response: Correct
Response Student
Response Answer Choices
a. O antigen
b. H antigen
c. K antigen
d. V antigen



Score: 1 / 1

Question 3 (1 point)
The gram-negative coccobacillus that causes whooping cough is:

Student response: Correct
Response Student
Response Answer Choices
a. Bordetella pertussis
b. Escherichia coli
c. Haemophilus influenzae
d. Legionella pneumophilia
e. Salmonella typhi



Score: 1 / 1

Question 4 (1 point)
The Gram-negative fastidious diplococcus which is transmitted by close contact and causes urethritis in most infected males is:

Student response: Correct
Response Student
Response Answer Choices
a. Yersinia pestis.
b. Treponema pallidum.
c. Neisseria gonorrhoeae.
d. Chlamydiae trachomatis.
e. Haemophilus influenzae.



Score: 1 / 1

Question 5 (1 point)
People who have close contact with rabbits or rodents are at risk of infection with the Gram-negative intracellular parasite __ that can be contracted in a variety of ways.

Student response: Correct
Response Student
Response Answer Choices
a. Borrelia burgdorferi
b. Campylobacter jejuni
c. Fransicella tularensis
d. Rickettsia rickettsii
e. Vibrio cholerae



Score: 1 / 1

Question 6 (1 point)
A teenager is admitted to the E.R. dehydrated with severe diarrhea, cramping and fever. His stool is very watery with a milky appearance known as "rice water" stool. What bacterium is the likely culprit?

Student response: Correct
Response Student
Response Answer Choices
a. Vibrio cholerae
b. Helicobacter pylori
c. Shigella
d. Escherichia coli
e. Yersinia pestis



Score: 1 / 1

Question 7 (1 point)
Refering to the previous question, which of the following would be most helpful in verifying the indentification?
a. Serologic test for unique V antigen.
b. Serologic test for unique O antigen.
c. Serologic test for K antigen.
d. Growth on blood agar plates.
e. Test for urease enzyme.

Back 52

Serologic test for the unique O antigen

Front 53

Which of the following is a zoonosis?
a. Bubonic plague
b. Rabbit fever
c. Lyme disease
d. None of these.
e. All of these

Back 53

all of these