Bacteriology: Gram +

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Characteristics, ecology, pathogenesis, and transmission of bacteria

Questions and Answers

1.

Actiniomycetes is a gram + microorganism. Which small pleomorphic rod causes cystitis and is a commensal of preputial mucosa?
- A.
  
  Arcanobacterium pyogenes
- B.
  
  Nocordia ateroides
- C.
  
  Actinobaculum suis
- D.
  
  Actinomyces bovis
- E.
  
  Actinomyces horderovulnaris
Correct Answer
C. Actinobaculum suis
2.

Which gram + filamentous branching rod is carried by fox tail? It causes cutaneous pyogranulamatous, pyothorax, osteomylitis
- A.
  
  Arcanobacterium pyogenes
- B.
  
  Nocordia ateroides
- C.
  
  Actinobaculum suis
- D.
  
  Actinomyces bovis
- E.
  
  Actinomyces hordeovulnaris
Correct Answer
E. Actinomyces hordeovulnaris
3.

What causes strawberry foot rott? It is a pleomorphic beaded chain gm + actinomycetes found on the foci of infection on carrier animals or within scabs
- A.
  
  A. bovis
- B.
  
  Dermatophilus congolensis
- C.
  
  Nocardia asteroides
- D.
  
  A. viscosis
- E.
  
  Arcanobacterium pyogenes
Correct Answer
B. Dermatophilus congolensis
4.

What is the gm + spore former whose spores are infectious? What is the virulence factors?
- A.
  
  Clostridrium; evade immune system and damage host (toxin)
- B.
  
  Cornebacterium; mediate attachment and damage host
- C.
  
  Bacillus anthracis; evade immune system and damage host (toxin)
- D.
  
  Mycobacterium tuberculosis; evade immune system and suppress immune system
- E.
  
  None of the above
Correct Answer
C. Bacillus anthracis; evade immune system and damage host (toxin)
5.

Clostridium is a gm + large rod; obligate anaerobes that form spores. Both types have a potent exotoxin. Which has 8 types with different antigenicity and potency, making prevention difficult due to different antigenicty and potency
- A.
  
  C. bacillus
- B.
  
  C. rhodoccus
- C.
  
  C. tetani
- D.
  
  C. botulinum
- E.
  
  C. tuberculosis
Correct Answer
D. C. botulinum
6.

Which organism's toxin has retrogade intra-axonal transport along peripheral nerve to terminal of inhibitory interneuron?
- A.
  
  Streptococcus
- B.
  
  Staphlyococcus
- C.
  
  Clostridium botulinum
- D.
  
  Clostridium tetani
- E.
  
  Bacillus anthracis
Correct Answer
D. Clostridium tetani
7.

Cornebacterium is a gram + pleomorphic rod. What pathogenesis does the C. renale group have?
- A.
  
  Onion like abscess
- B.
  
  Ulcerative lymphangitis
- C.
  
  Flaccid paralysis
- D.
  
  Ulcerative balanoposthis (pizzle rot)
- E.
  
  All the above
Correct Answer
D. Ulcerative balanoposthis (pizzle rot)
8.

What bacteria is the most important pathogen to causes a urticarial form in swine, vegetative endocarditis form in swine/birds/dogs, acute septicemia in turkey/geese/marine mammals, and polyarthritis in ruminants?
- A.
  
  Erysipelothrix rhusiopathiae
- B.
  
  Listeria
- C.
  
  Mycobacterium avium ssp paratuberculoses
- D.
  
  Staphylococcus aureus
- E.
  
  None of the above
Correct Answer
A. Erysipelothrix rhusiopathiae
9.

Erysipelothri rhusiopathiae causes what in swine?
- A.
  
  Pizzle rot
- B.
  
  Strawberry foot
- C.
  
  Diamand back disease
- D.
  
  Cellulitis
- E.
  
  Septicemia
Correct Answer
C. Diamand back disease
10.

True or False: Listeria is motile?
- A.
  
  True
- B.
  
  False
Correct Answer
A. True
11.

What are the forms of listeria?
- A.
  
  Visceral, neural, abortion, conjunctivitis
- B.
  
  Visceral, neural, fetal
- C.
  
  Neural, lymphatic, systemic
- D.
  
  All of the above
- E.
  
  None of the above
Correct Answer
A. Visceral, neural, abortion, conjunctivitis
12.

Mycobacterium is an acid fast rod that has cell walls that are rich in mycolic acid. True or false: species of mycobacterium are known to cause: consumption, pearl disease, johnes disease, feline leprosy, and abortions
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
everything but abortions is correct

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13.

What causes Johnes disease
- A.
  
  Mycobacterium tuberculosis
- B.
  
  M. bovis
- C.
  
  M. leproaemurium
- D.
  
  M. avium spp avium
- E.
  
  M. avium spp paratuberculosis
Correct Answer
E. M. avium spp paratuberculosis
14.

What organism is a gram positive pleomorphic coccobacillus that lives in the soil and manure on horse farms and in horse GIT? It is mostly transmitted by inhalation and or ingestion of dust.
- A.
  
  Staphylocccus intermedius
- B.
  
  Streptococcus equi spp equi
- C.
  
  Streptococcus equi spp zooepidemicus
- D.
  
  Rhodococcus equi
- E.
  
  None of the above
Correct Answer
D. Rhodococcus equi
15.

What is the shape of staphylococcus?
- A.
  
  Bunches of round grapes
- B.
  
  Round and in chains
- C.
  
  Rectangular
- D.
  
  Pleomorphic
- E.
  
  Spiral
Correct Answer
A. Bunches of round grapes
16.

What is the most common pyogenic agent in dogs that causes pyoderma, otititis externa, respiratory tract infection, and infection of bones, joints, wounds?
- A.
  
  Streptococcus pyogenes
- B.
  
  Staphlococcus aureus
- C.
  
  Staphlococcus hyicus
- D.
  
  Listeria
- E.
  
  None of the above
Correct Answer
E. None of the above

Explanation
staphlococcus intermedius

Rate this question:
17.

True or false: staphyloccoccus is a commensal of the upper respiratory tract/skin and can live on inanimate environments
- A.
  
  True
- B.
  
  False
Correct Answer
A. True
18.

Streptococcus is a gm + cocci thta causes a pyogenic infection at any body site. Which streptococcus(es) is/are contageous?
- A.
  
  S. Dysgalactiae spp equisimilis
- B.
  
  S. equi spp equi
- C.
  
  S. equi spp zooepidemicus
- D.
  
  S. porcinus
- E.
  
  S. canis
Correct Answer(s)
B. S. equi spp equi
D. S. porcinus
19.

What is the correct lab diagnosis interpretation of hemolysis of streptococcus?
- A.
  
  Alpha: no hemolysis, beta: partial; gamma: complete
- B.
  
  Alpha: partial; beta: none; gamma: complete
- C.
  
  Alpha: complete; beta: partial; gamma: none
- D.
  
  Alpha: partial; beta: complete; gamma: none
- E.
  
  Alpha: complete; beta: none; gamma: partial
Correct Answer
D. Alpha: partial; beta: complete; gamma: none
20.

Which antimicrobial irreversibly binds 30S?
- A.
  
  Aminoglycosides
- B.
  
  Tetracyclines
- C.
  
  Chloramphenicol
- D.
  
  Macrolides
- E.
  
  Lincosamides
Correct Answer
A. Aminoglycosides
21.

What are the colors of gram stain?
- A.
  
  Gm +: brown; gm -: red
- B.
  
  Gm +: purple; gm -: red
- C.
  
  Gm + red; gm-: purple
- D.
  
  Gm +: colorless; gm -: purple
- E.
  
  None of the above
Correct Answer
B. Gm +: purple; gm -: red
22.

What antimicrobial drugs target DNA gyrase?
- A.
  
  Rifampin
- B.
  
  Aminoglycosides
- C.
  
  Polymyxins
- D.
  
  Quinolones
- E.
  
  Sulfonamides
Correct Answer
D. Quinolones
23.

What is the process of transferring drug resistance via plasmids from one bacteria to another
- A.
  
  Transformation
- B.
  
  Transduction
- C.
  
  Conjugation
- D.
  
  Transposition
- E.
  
  Mitosis
Correct Answer
C. Conjugation
24.

E. colli, klebsiella, proteus, pseudomonas, pasteurella, and salmonella are what type of bacterial pathogen
- A.
  
  Gm + aerobes
- B.
  
  Gm + anaerobes
- C.
  
  Gm - aerobes
- D.
  
  Gm - anaerobes
- E.
  
  None, they are acid fast stained
Correct Answer
C. Gm - aerobes

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Current Version
Nov 28, 2017

Quiz Edited by
ProProfs Editorial Team
Feb 22, 2009

Quiz Created by
Rakim33

Bacteriology: Gram +

Actiniomycetes is a gram + microorganism. Which small pleomorphic rod causes cystitis and is a commensal of preputial mucosa?

Which gram + filamentous branching rod is carried by fox tail? It causes cutaneous pyogranulamatous, pyothorax, osteomylitis

What causes strawberry foot rott? It is a pleomorphic beaded chain gm + actinomycetes found on the foci of infection on carrier animals or within scabs

What is the gm + spore former whose spores are infectious? What is the virulence factors?

Clostridium is a gm + large rod; obligate anaerobes that form spores. Both types have a potent exotoxin. Which has 8 types with different antigenicity and potency, making prevention difficult due to different antigenicty and potency

Which organism's toxin has retrogade intra-axonal transport along peripheral nerve to terminal of inhibitory interneuron?

Cornebacterium is a gram + pleomorphic rod. What pathogenesis does the C. renale group have?

What bacteria is the most important pathogen to causes a urticarial form in swine, vegetative endocarditis form in swine/birds/dogs, acute septicemia in turkey/geese/marine mammals, and polyarthritis in ruminants?

Erysipelothri rhusiopathiae causes what in swine?

True or False: Listeria is motile?

What are the forms of listeria?

Mycobacterium is an acid fast rod that has cell walls that are rich in mycolic acid. True or false: species of mycobacterium are known to cause: consumption, pearl disease, johnes disease, feline leprosy, and abortions

What causes Johnes disease

What organism is a gram positive pleomorphic coccobacillus that lives in the soil and manure on horse farms and in horse GIT? It is mostly transmitted by inhalation and or ingestion of dust.

What is the shape of staphylococcus?

What is the most common pyogenic agent in dogs that causes pyoderma, otititis externa, respiratory tract infection, and infection of bones, joints, wounds?

True or false: staphyloccoccus is a commensal of the upper respiratory tract/skin and can live on inanimate environments

Streptococcus is a gm + cocci thta causes a pyogenic infection at any body site. Which streptococcus(es) is/are contageous?

What is the correct lab diagnosis interpretation of hemolysis of streptococcus?

Which antimicrobial irreversibly binds 30S?

What are the colors of gram stain?

What antimicrobial drugs target DNA gyrase?

What is the process of transferring drug resistance via plasmids from one bacteria to another

E. colli, klebsiella, proteus, pseudomonas, pasteurella, and salmonella are what type of bacterial pathogen