Microbiology Test - Answers BOLDED ARE CORRECT ON OTHER SIDE

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What is the morphology of Vibrio sp. bacteria?

(A) Bacillus

(B) Coccus

(C) Spirochete

(D) Coccobacillus
What is the morphology of Vibrio sp. bacteria?

(A) Bacillus

(B) Coccus

(C) Spirochete

(D) Coccobacillus
Which of the following is an important function of bacterial fimbriae?

(A) Attachment

(B) Locomotion

(C) Ion Transport

(D) Anti-biotic resistance
Which of the following is an important function of bacterial fimbriae?

(A) Attachment

(B) Locomotion

(C) Ion Transport

(D) Anti-biotic resistance
Bacterial endospores

(A) Are resistant to heat and desiccation

(B) Form of asexual reproduction

(C) Consequence of mating

(D) Highly susceptible to anti-septics
Bacterial endospores

(A) Are resistant to heat and desiccation

(B) Form of asexual reproduction

(C) Consequence of mating

(D) Highly susceptible to anti-septics
Sarcinae morphology refers to what kind of bacterial arrangement

(A) Pairs

(B) Grape like clusters

(C) Groups of four

(D) Cubes of eight
Sarcinae morphology refers to what kind of bacterial arrangement

(A) Pairs

(B) Grape like clusters

(C) Groups of four

(D) Cubes of eight
In the gram stain procedure, the mordant is

(A) Crystal violet

(B) Iodine

(C) Alcohol

(D) Safranin
In the gram stain procedure, the mordant is

(A) Crystal violet

(B) Iodine

(C) Alcohol

(D) Safranin
A bacterial genus can be best described as

(A) Composed of one or more species

(B) Composed of classes

(C) Composed of families

(D) Belongs to a species
A bacterial genus can be best described as

(A) Composed of one or more species

(B) Composed of classes

(C) Composed of families

(D) Belongs to a species
An iodine scrub on skin would result in

(A) Antisepsis

(B) Disinfection

(C) Fumigation

(D) Sterilization
An iodine scrub on skin would result in

(A) Antisepsis

(B) Disinfection

(C) Fumigation

(D) Sterilization
lyophilization is

(A) Holding at 72 degrees C for 15 seconds

(B) Competitive inhibition

(C) Freeze-drying

(D) Sterility testing
lyophilization is

(A) Holding at 72 degrees C for 15 seconds

(B) Competitive inhibition

(C) Freeze-drying

(D) Sterility testing
Compared to bacteria, fungi

(A) Grow better at alkaline pH

(B) Need less moisture to survive

(C) Are less resistant to osmotic pressure

(D) Are smaller
Compared to bacteria, fungi

(A) Grow better at alkaline pH

(B) Need less moisture to survive

(C) Are less resistant to osmotic pressure

(D) Are smaller
In the bacterial name Borrelia burgdorferi, what does burgdorferi represent?

(A) Species

(B) Genus

(C) Family

(D) Class
In the bacterial name Borrelia burgdorferi, what does burgdorferi represent?

(A) Species

(B) Genus

(C) Family

(D) Class
The temperature that must be reached in an autoclave to destroy microorganisms

(A) 110 degrees C

(B) 121 degrees C

(C) 170 degrees C

(D) 240 degrees C
The temperature that must be reached in an autoclave to destroy microorganisms

(A) 110 degrees C

(B) 121 degrees C

(C) 170 degrees C

(D) 240 degrees C
Which is a lentivirus

(A) Coronavirus

(B) Feline immunodeficiency virus

(C) Herpes virus

(D) Parvovirus
Which is a lentivirus

(A) Coronavirus

(B) Feline immunodeficiency virus

(C) Herpes virus

(D) Parvovirus
A prodromal period

(A) Is time before signs and symptoms appear

(B) Immediately precedes convalescence

(C) Involves early signs and symptoms

(D) Involves acute signs and symptoms
A prodromal period

(A) Is time before signs and symptoms appear

(B) Immediately precedes convalescence

(C) Involves early signs and symptoms

(D) Involves acute signs and symptoms
A non-gram staining bacterium is

(A) Clostridium

(B) Leptospira

(C) Pseudomonas

(D) Staphylococcus
A non-gram staining bacterium is

(A) Clostridium

(B) Leptospira

(C) Pseudomonas

(D) Staphylococcus
A hospital acquired disease is

(A) Endemic

(B) Nosocomial

(C) Ergasteric

(D) Iatrogenic
A hospital acquired disease is

(A) Endemic

(B) Nosocomial

(C) Ergasteric

(D) Iatrogenic
Tetanus is considered

(A) Endemic

(B) Contagious

(C) Noncommunicable

(D) Epizootic
Tetanus is considered

(A) Endemic

(B) Contagious

(C) Noncommunicable

(D) Epizootic
Which is a gram-positive bacterium

(A) Clostridium

(B) Pasteurella

(C) Pseudomonas

(D) Leptospira
Which is a gram-positive bacterium

(A) Clostridium

(B) Pasteurella

(C) Pseudomonas

(D) Leptospira
Which is a gram-negative bacterium

(A) Clostridium

(B) Pasteurella

(C) Staphylococcus

(D) Leptospira
Which is a gram-negative bacterium

(A) Clostridium

(B) Pasteurella

(C) Staphylococcus

(D) Leptospira
Is the most difficult to find antimicrobials for

(A) Molds

(B) Bacteria

(C) Rickettsia

(D) Viruses
Is the most difficult to find antimicrobials for

(A) Molds

(B) Bacteria

(C) Rickettsia

(D) Viruses
Rocky mountain spotted fever is more prevalent in

(A) Northeastern US

(B) Southeastern US

(C) Pacific Northwest

(D) Rocky Mountains
Rocky mountain spotted fever is more prevalent in

(A) Northeastern US

(B) Southeastern US

(C) Pacific Northwest

(D) Rocky Mountains
The etiologic agent of lyme disease is

(A) Borrelia burgdorferi

(B) Coronavirus

(C) Lentivirus

(D) Pasteurella multocida
The etiologic agent of lyme disease is

(A) Borrelia burgdorferi

(B) Coronavirus

(C) Lentivirus

(D) Pasteurella multocida
In the name Staphylococcus aureus, Staphylococcus is the

(A) Order

(B) Family

(C) Genus

(D) Species
In the name Staphylococcus aureus, Staphylococcus is the

(A) Order

(B) Family

(C) Genus

(D) Species
The counter stain in the Gram stain is

(A) Crystal violet

(B) Methylene blue

(C) Iodine

(D) Safranin
The counter stain in the Gram stain is

(A) Crystal violet

(B) Methylene blue

(C) Iodine

(D) Safranin
Most bacteria grow best at pH

(A) 1

(B) 3

(C) 9

(D) 7
Most bacteria grow best at pH

(A) 1

(B) 3

(C) 9

(D) 7
Which is an important function of bacterial flagella

(A) Attachment

(B) Locomotion

(C) DNA replication

(D) Ion transport
Which is an important function of bacterial flagella

(A) Attachment

(B) Locomotion

(C) DNA replication

(D) Ion transport
What is not a method of culturing animal viruses?

(A) Laboratory animal inoculation

(B) Cell culture

(C) Agar plate inoculation

(D) Embryonic egg inoculation
What is not a method of culturing animal viruses?

(A) Laboratory animal inoculation

(B) Cell culture

(C) Agar plate inoculation

(D) Embryonic egg inoculation
Undulating fever is a zoonotic disease caused by

(A) listeria sp.

(B) Toxoplasma sp.

(C) Brucella sp.

(D) Hemophilus sp.
Undulating fever is a zoonotic disease caused by

(A) listeria sp.

(B) Toxoplasma sp.

(C) Brucella sp.

(D) Hemophilus sp.
Warts are caused by

(A) Bacteria

(B) Fungi

(C) Viruses

(D) Protozoa
Warts are caused by

(A) Bacteria

(B) Fungi

(C) Viruses

(D) Protozoa
A plasmid is a

(A) Nonchromosomal, circular strand of bacteria genome

(B) Chromosomal, circular strand of bacterial genome

(C) Nonchromosomal, circular strand viral particle

(D) Chromosomal, circular strand viral particle
A plasmid is a

(A) Nonchromosomal, circular strand of bacteria genome

(B) Chromosomal, circular strand of bacterial genome

(C) Nonchromosomal, circular strand viral particle

(D) Chromosomal, circular strand viral particle
Nutritive media will

(A) Grow almost all types of bacteria

(B) Grow only some types of bacteria

(C) Differentiate certain types of bacteria

(D) Grow gram-negative bacteria only
Nutritive media will

(A) Grow almost all types of bacteria

(B) Grow only some types of bacteria

(C) Differentiate certain types of bacteria

(D) Grow gram-negative bacteria only
Selective media grow

(A) All types of bacteria

(B) Some types of bacteria only

(C) And differentiate certain types of

(D) Gram-negative bacteria only
Selective media grow

(A) All types of bacteria

(B) Some types of bacteria only

(C) And differentiate certain types of

(D) Gram-negative bacteria only
Trypticase soy agar

(A) Contains 25% sheep blood

(B) In a nutritive media

(C) Used for observation of bacterial fermentation reaction

(D) Is also called chocolate agar plate
Trypticase soy agar

(A) Contains 25% sheep blood

(B) In a nutritive media

(C) Used for observation of bacterial fermentation reaction

(D) Is also called chocolate agar plate
MacConkey agar

(A) Selects for gram-positive organisms

(B) Uses crystal blue as a gram-negative inhibitor

(C) Differentiate between dextrose/non-dextrose fermenter

(D) Selects for gram-negative organisms
MacConkey agar

(A) Selects for gram-positive organisms

(B) Uses crystal blue as a gram-negative inhibitor

(C) Differentiate between dextrose/non-dextrose fermenter

(D) Selects for gram-negative organisms
The most important laboratory procedure for microbiologic diagnosis is

(A) Inoculation of blood agar

(B) Antimicrobial susceptibility testing

(C) Direct microscopic examination of specimen

(D) Serologic testing
The most important laboratory procedure for microbiologic diagnosis is

(A) Inoculation of blood agar

(B) Antimicrobial susceptibility testing

(C) Direct microscopic examination of specimen

(D) Serologic testing
Dermatophyte test medium

(A) Identify organisms that produce hemolysis

(B) Will grow gram-positive organisms only

(C) Is used to identify fungal organisms

(D) Will grow gram-negative organisms only
Dermatophyte test medium

(A) Identify organisms that produce hemolysis

(B) Will grow gram-positive organisms only

(C) Is used to identify fungal organisms

(D) Will grow gram-negative organisms only
Which of the following is considered sterile

(A) Hair

(B) Skin

(C) Saliva

(D) Lower respiratory tract
Which of the following is considered sterile

(A) Hair

(B) Skin

(C) Saliva

(D) Lower respiratory tract
When culturing a swab for bacterial identification, which of the following media should be used

(A) TSI, BAP, CAMPY

(B) EMB, BAP, MAC

(C) BAP, CNA, MAC

(D) CNA, TSI, MSA
When culturing a swab for bacterial identification, which of the following media should be used

(A) TSI, BAP, CAMPY

(B) EMB, BAP, MAC

(C) BAP, CNA, MAC

(D) CNA, TSI, MSA
The nonpathogenic gram-positive rods found on skin are

(A) Diptheroids

(B) Coliforms

(C) Anaerobes

(D) Dermatophytes
The nonpathogenic gram-positive rods found on skin are

(A) Diptheroids

(B) Coliforms

(C) Anaerobes

(D) Dermatophytes
To get the best results, all fecal results are

(A) Inoculated into BAP, CNA, TSB

(B) Inoculated into MAC, SS, GN

(C) Inoculated into MH, SS, THIO

(D) Inoculated into BAP, MAC, SS
To get the best results, all fecal results are

(A) Inoculated into BAP, CNA, TSB

(B) Inoculated into MAC, SS, GN

(C) Inoculated into MH, SS, THIO

(D) Inoculated into BAP, MAC, SS
Fungal cultures are

(A) Incubated at room temperature

(B) Incubated at microaerophilic environment

(C) Incubated at body temperature

(D) Incubated at anaerobic environment
Fungal cultures are

(A) Incubated at room temperature

(B) Incubated at microaerophilic environment

(C) Incubated at body temperature

(D) Incubated at anaerobic environment
Staphylococcus aureus

(A) Is catalase-positive

(B) Is coagulase-positive

(C) Grows in an anerobic environment only

(D) Is gram-negative
Staphylococcus aureus

(A) Is catalase-positive

(B) Is coagulase-positive

(C) Grows in an anerobic environment only

(D) Is gram-negative
Streptococci

(A) Are catalase-positive

(B) Are catalase negative

(C) Resemble shooting stars when grown in tube media

(D) Are never hemolytic like staphylococcus
Streptococci

(A) Are catalase-positive

(B) Are catalase negative

(C) Resemble shooting stars when grown in tube media

(D) Are never hemolytic like staphylococcus
Enterobacteriaceae are found in what part of the body

(A) Lungs

(B) Intestines

(C) Skin

(D) Stomach
Enterobacteriaceae are found in what part of the body

(A) Lungs

(B) Intestines

(C) Skin

(D) Stomach
Which of the following is considered a serious primary pathogen in birds, reptiles, and amphibians?

(A) Pseudomonas

(B) Shigella

(C) Staphylococcus

(D) Micrococcus
Which of the following is considered a serious primary pathogen in birds, reptiles, and amphibians?

(A) Pseudomonas

(B) Shigella

(C) Staphylococcus

(D) Micrococcus
Which of the following is a spreading organism when grown on agar plates?

(A) Staphylococcus

(B) Streptococcus

(C) Shigella

(D) Proteus
Which of the following is a spreading organism when grown on agar plates?

(A) Staphylococcus

(B) Streptococcus

(C) Shigella

(D) Proteus
Which of the following bacteria is a gram-negative spirochete?

(A) Staphylococcus

(B) Streptococcus

(C) Micrococcus

(D) Campylobacter
Which of the following bacteria is a gram-negative spirochete?

(A) Staphylococcus

(B) Streptococcus

(C) Micrococcus

(D) Campylobacter
Candida albicans may cause different diseases, especially when there is a predisposing condition such as

(A) Vegetarian diet

(B) Primary bacterial infection

(C) Prolonged analgesic use

(D) Carnivore diet
Candida albicans may cause different diseases, especially when there is a predisposing condition such as

(A) Vegetarian diet

(B) Primary bacterial infection

(C) Prolonged analgesic use

(D) Carnivore diet
Which of these is a primary medium and would be used for initial inoculation of a sample?

(A) Triple-sugar iron

(B) Trypticase soy agar with 5% sheep blood

(C) Citrate

(D) Urea
Which of these is a primary medium and would be used for initial inoculation of a sample?

(A) Triple-sugar iron

(B) Trypticase soy agar with 5% sheep blood

(C) Citrate

(D) Urea
Gram-negative bacteria retain what component of gram stain?

(A) Crystal violet

(B) Iodine solution

(C) Decolorizer

(D) Safranin
Gram-negative bacteria retain what component of gram stain?

(A) Crystal violet

(B) Iodine solution

(C) Decolorizer

(D) Safranin
What media is selective for gram-negative bacteria?

(A) MacConkey

(B) BAP

(C) Mannitol salt agar

(D) Mueller-Hinton agar
What media is selective for gram-negative bacteria?

(A) MacConkey

(B) BAP

(C) Mannitol salt agar

(D) Mueller-Hinton agar
The catalase and coagulase tests are used in the presumptive identification of

(A) Gram-negative bacteria

(B) Gram-positive bacteria

(C) Saprophytes

(D) Dermatophytes
The catalase and coagulase tests are used in the presumptive identification of

(A) Gram-negative bacteria

(B) Gram-positive bacteria

(C) Saprophytes

(D) Dermatophytes
What gram-negative bacteria may swarm a blood agar plate, leaving a film over the entire surface

(A) Pseudomonas sp.

(B) Staphylococcus sp.

(C) Proteus sp.

(D) Escherichia sp.
What gram-negative bacteria may swarm a blood agar plate, leaving a film over the entire surface

(A) Pseudomonas sp.

(B) Staphylococcus sp.

(C) Proteus sp.

(D) Escherichia sp.
What microorganism is frequently recovered from the ears of dogs with chronic otitis externa

(A) Candida sp.

(B) Cryptococcus sp.

(C) Microsporum sp.

(D) Malassezia sp.
What microorganism is frequently recovered from the ears of dogs with chronic otitis externa

(A) Candida sp.

(B) Cryptococcus sp.

(C) Microsporum sp.

(D) Malassezia sp.
What microorganism is an etiologic agent of ringworm

(A) Microsporum sp.

(B) Mycobacterium sp.

(C) Micrococcus sp.

(D) Moraxella sp.
What microorganism is an etiologic agent of ringworm

(A) Microsporum sp.

(B) Mycobacterium sp.

(C) Micrococcus sp.

(D) Moraxella sp.
The species of this genus are common contaminants and the causative agent of anthrax

(A) Escherichia

(B) Corynebacterium

(C) Bacillus

(D) Enterobacter
The species of this genus are common contaminants and the causative agent of anthrax

(A) Escherichia

(B) Corynebacterium

(C) Bacillus

(D) Enterobacter
What is a common pathogen in mastitis, skin wounds, and abscesses that is also found in the environment?

(A) Proteus vulgaris

(B) Escherichia coli

(C) Streptococcus spp.

(D) Staphylococcus aureus
What is a common pathogen in mastitis, skin wounds, and abscesses that is also found in the environment?

(A) Proteus vulgaris

(B) Escherichia coli

(C) Streptococcus spp.

(D) Staphylococcus aureus
The species of this genus can cause strangles in horses?

(A) Streptococcus

(B) Clostridium

(C) Pseudomonas

(D) Malassezia
The species of this genus can cause strangles in horses?

(A) Streptococcus

(B) Clostridium

(C) Pseudomonas

(D) Malassezia
A normal gastrointestinal inhabitant in turkeys, chickens, and humans that can cause serious urinary tract infections, diarrhea, and tissues infections is

(A) Leptospira sp.

(B) Escherichia coli

(C) Pasteurella multocida

(D) Staphylococcus intermedius
A normal gastrointestinal inhabitant in turkeys, chickens, and humans that can cause serious urinary tract infections, diarrhea, and tissues infections is

(A) Leptospira sp.

(B) Escherichia coli

(C) Pasteurella multocida

(D) Staphylococcus intermedius
What family of bacteria is the largest group of potential pathogens and the most frequently isolated bacteria

(A) Actinomycetacea

(B) Bacteroidaceae

(C) Enterobacteriaceae

(D) Micrococcaceae
What family of bacteria is the largest group of potential pathogens and the most frequently isolated bacteria

(A) Actinomycetacea

(B) Bacteroidaceae

(C) Enterobacteriaceae

(D) Micrococcaceae
Skin scales and infected hair samples are mixed with __ to dissolve the debris and aid in microscopic examination for fungal elements

(A) Hydrogen peroxide

(B) Acetic acid

(C) Physiologic saline

(D) Potassium hydroxide
Skin scales and infected hair samples are mixed with __ to dissolve the debris and aid in microscopic examination for fungal elements

(A) Hydrogen peroxide

(B) Acetic acid

(C) Physiologic saline

(D) Potassium hydroxide
The temp of a bacterial incubation would likely be

(A) 4 degrees C

(B) 25 degrees C

(C) 37 degrees C

(D) 56 degrees C
The temp of a bacterial incubation would likely be

(A) 4 degrees C

(B) 25 degrees C

(C) 37 degrees C

(D) 56 degrees C
What agar is used for antimicrobial susceptibility testing

(A) Sabouraund agar

(B) Mueller-Hinton agar

(C) MacConkey agar

(D) Kligler iron agar
What agar is used for antimicrobial susceptibility testing

(A) Sabouraund agar

(B) Mueller-Hinton agar

(C) MacConkey agar

(D) Kligler iron agar
A Wood's lamp is used to examine an animal for the presence of

(A) Demodex

(B) Scabies

(C) Ringworm

(D) Pinworm
A Wood's lamp is used to examine an animal for the presence of

(A) Demodex

(B) Scabies

(C) Ringworm

(D) Pinworm
What is the best method to obtain a sample when attempting to determine whether dermatophytes are present?

(A) Take hair from periphery of lesion

(B) Make impression smear of entire lesion

(C) Take hair from center of lesion

(D) Perform skin scrape from center of lesion
What is the best method to obtain a sample when attempting to determine whether dermatophytes are present?

(A) Take hair from periphery of lesion

(B) Make impression smear of entire lesion

(C) Take hair from center of lesion

(D) Perform skin scrape from center of lesion
In the Gram-stain procedure, which of these is the appropriate staining sequence?

(A) Crystal violet, decolorizer, iodine, sfaranin

(B) Iodine, crystal violet, decolorizer, crystal violet

(C) Safranin, iodine, decolorizer, crystal violet

(D) Crystal violet, iodine, decolorizer, safranin
In the Gram-stain procedure, which of these is the appropriate staining sequence?

(A) Crystal violet, decolorizer, iodine, sfaranin

(B) Iodine, crystal violet, decolorizer, crystal violet

(C) Safranin, iodine, decolorizer, crystal violet

(D) Crystal violet, iodine, decolorizer, safranin
Incubation time to grow aerobic bacteria is typically

(A) 6 hours

(B) 12 hours

(C) 24 hours

(D) 48 hours
Incubation time to grow aerobic bacteria is typically

(A) 6 hours

(B) 12 hours

(C) 24 hours

(D) 48 hours
Which of the following is a selective medium?

(A) MacConkey

(B) Mueller-Hinton

(C) Trypticase soy gar with 5% sheep blood

(D) Trypticase soy agar
Which of the following is a selective medium?

(A) MacConkey

(B) Mueller-Hinton

(C) Trypticase soy gar with 5% sheep blood

(D) Trypticase soy agar
Trypticase soy agar with 5% sheep's blood is used

(A) As an enrichment medium

(B) To show hemolytic reactions

(C) To select for staphylococcus spp

(D) To inhibit growth of salmonella spp.
Trypticase soy agar with 5% sheep's blood is used

(A) As an enrichment medium

(B) To show hemolytic reactions

(C) To select for staphylococcus spp

(D) To inhibit growth of salmonella spp.
The Fungassay test medium is selective for what organism?

(A) Trichophyton

(B) Trichuris

(C) Toxoplasma

(D) Tritrichomonas
The Fungassay test medium is selective for what organism?

(A) Trichophyton

(B) Trichuris

(C) Toxoplasma

(D) Tritrichomonas
Chocolate agar is predominately used to grow

(A) Proteus vulgaris

(B) Escherichia coli

(C) Microsporum gypseum

(D) Brucella abortus
Chocolate agar is predominately used to grow

(A) Proteus vulgaris

(B) Escherichia coli

(C) Microsporum gypseum

(D) Brucella abortus
What organism is large, thick walled yeast, often seen budding, which may infect the skin as well as deeper structures?

(A) Histoplasma

(B) Blastomyces

(C) Coccidioides

(D) Dermatophilus
What organism is large, thick walled yeast, often seen budding, which may infect the skin as well as deeper structures?

(A) Histoplasma

(B) Blastomyces

(C) Coccidioides

(D) Dermatophilus
Which of the following is associated with mycotoxicosis?

(A) Grains and forage

(B) Cryptococcus

(C) Water

(D)Histoplasmosis
Which of the following is associated with mycotoxicosis?

(A) Grains and forage

(B) Cryptococcus

(C) Water

(D)Histoplasmosis
What systemic fungus is small and often found in cytoplasm of macrophages?

(A) Aspergillus

(B) Blastomyces

(C) Histoplasma

(D) Cryptococcus
What systemic fungus is small and often found in cytoplasm of macrophages?

(A) Aspergillus

(B) Blastomyces

(C) Histoplasma

(D) Cryptococcus
What is a large, thick-walled yeast surrounded by a wide, nonstaining gelatinous capsule?

(A) Aspergillus

(B) Blastomyces

(C) Histoplasma

(D) Cryptococcus
What is a large, thick-walled yeast surrounded by a wide, nonstaining gelatinous capsule?

(A) Aspergillus

(B) Blastomyces

(C) Histoplasma

(D) Cryptococcus
What color do fungal organisms stain with Gram stain?

(A) Red

(B) Blue

(C) Green

(D) Black
What color do fungal organisms stain with Gram stain?

(A) Red

(B) Blue

(C) Green

(D) Black
What color do acid-fast organisms stain with acid-fast stain?

(A) Red

(B) Blue

(C) Green

(D) Black
What color do acid-fast organisms stain with acid-fast stain?

(A) Red

(B) Blue

(C) Green

(D) Black
How are diseases caused by prion thought to be transmitted?

(A) By ingestion

(B) By direct contact

(C) By inhalation

(D) By injection
How are diseases caused by prion thought to be transmitted?

(A) By ingestion

(B) By direct contact

(C) By inhalation

(D) By injection
Gram-positive microorganisms stain _______

(A) Purple

(B) Red

(C) Orange

(D) Lavender
Gram-positive microorganisms stain _______

(A) Purple

(B) Red

(C) Orange

(D) Lavender
Acid-fast stains are used to identify?

(A) Coccidia

(B) Yeast

(C) Fungi

(D) Mycobacteria
Acid-fast stains are used to identify?

(A) Coccidia

(B) Yeast

(C) Fungi

(D) Mycobacteria
Acid-fast positive organisms stain ___ when using an acid fast stain

(A) Yellow

(B) Blue

(C) Pink

(D) Brown
Acid-fast positive organisms stain ___ when using an acid fast stain

(A) Yellow

(B) Blue

(C) Pink

(D) Brown
What is the predominant method of transmission of feline immunodeficiency virus in cats?

(A) Grooming

(B) Bite wounds

(C) Urine

(D) Feces
What is the predominant method of transmission of feline immunodeficiency virus in cats?

(A) Grooming

(B) Bite wounds

(C) Urine

(D) Feces
Large # of bacteria growing in broth media will cause the broth to become

(A) Red

(B) Gel

(C) Colorless

(D) Turbid
Large # of bacteria growing in broth media will cause the broth to become

(A) Red

(B) Gel

(C) Colorless

(D) Turbid
What microorganisms are not free-living?

(A) Algae

(B) Fungi

(C) Bacteria

(D) Viruses
What microorganisms are not free-living?

(A) Algae

(B) Fungi

(C) Bacteria

(D) Viruses
Of course.
Is Zach amazing for making this?
The acid-fast stain is used to identify the organism that causes

(A) Anaplasmosis

(B) Colibacillosis

(C) Ringworm

(D) Tuberculosis
The acid-fast stain is used to identify the organism that causes

(A) Anaplasmosis

(B) Colibacillosis

(C) Ringworm

(D) Tuberculosis
What type of micro-biologic media is used when a specific pathogen is sought from an area where there is normally extensive normal flora?

(A) Selective

(B) Indicator

(C) Nutrient

(D) Reducing
What type of micro-biologic media is used when a specific pathogen is sought from an area where there is normally extensive normal flora?

(A) Selective

(B) Indicator

(C) Nutrient

(D) Reducing
Escherichia coli 0157 infections are most likely obtained from eating infected

(A) Streak

(B) Hamburger

(C) Frozen chicken

(D) Cold cuts
Escherichia coli 0157 infections are most likely obtained from eating infected

(A) Streak

(B) Hamburger

(C) Frozen chicken

(D) Cold cuts
Gram-negative organisms appear as what color when stained with gram stain

(A) Blue

(B) Red

(C) Green

(D) Clear
Gram-negative organisms appear as what color when stained with gram stain

(A) Blue

(B) Red

(C) Green

(D) Clear
Which of the following is not a collection device for microbiologic samples

(A) Sterile swab

(B) New toothbrush

(C) Syringe with fine-gauge needle

(D) Needle with EDTA tube
Which of the following is not a collection device for microbiologic samples

(A) Sterile swab

(B) New toothbrush

(C) Syringe with fine-gauge needle

(D) Needle with EDTA tube
Which of the following best describes what happens when a bacterial cell is placed in a solution that contains 5% NaCl

(A) No change is evident; solution is isotonic

(B) Cell undergoes osmotic lysis

(C) Water moves out of cell

(D) Water moves in cell
Which of the following best describes what happens when a bacterial cell is placed in a solution that contains 5% NaCl

(A) No change is evident; solution is isotonic

(B) Cell undergoes osmotic lysis

(C) Water moves out of cell

(D) Water moves in cell
Which of the following does not kill endospores?

(A) Autoclaving

(B) Incineration

(C) Hot-air sterilization

(D) Pasteurization
Which of the following does not kill endospores?

(A) Autoclaving

(B) Incineration

(C) Hot-air sterilization

(D) Pasteurization
What method is best used to sterilize heat-sensitive medical equipment?

(A) Dry heat

(B) Autoclaving

(C) Gas sterilization

(D) Pasteurization
What method is best used to sterilize heat-sensitive medical equipment?

(A) Dry heat

(B) Autoclaving

(C) Gas sterilization

(D) Pasteurization
Viruses are best described as?

(A) Free-living organisms

(B) Obligatory interstitial parasites

(C) Obligatory intracellular parasites

(D) Eukaryotic cells
Viruses are best described as?

(A) Free-living organisms

(B) Obligatory interstitial parasites

(C) Obligatory intracellular parasites

(D) Eukaryotic cells
The test that uses an enzyme that causes the conversion of hydrogen peroxide to hydrogen and oxygen when a bacterial colony is placed in the hydrogen peroxide is

(A) Coggins

(B) Coagulase

(C) Catalase

(D) Coombs
The test that uses an enzyme that causes the conversion of hydrogen peroxide to hydrogen and oxygen when a bacterial colony is placed in the hydrogen peroxide is

(A) Coggins

(B) Coagulase

(C) Catalase

(D) Coombs
A positive catalase test will be indicated by the presence of

(A) Color change

(B) Gel formation

(C) Bubbles

(D) Fibrin
A positive catalase test will be indicated by the presence of

(A) Color change

(B) Gel formation

(C) Bubbles

(D) Fibrin
The test that will differentiate staphylococcus aureus from other, less pathogenic staphylococci is the ____ test

(A) Dreminase

(B) Urease

(C) Oxidase

(D) Coagulase
The test that will differentiate staphylococcus aureus from other, less pathogenic staphylococci is the ____ test

(A) Dreminase

(B) Urease

(C) Oxidase

(D) Coagulase
A nosocominal infection is

(A) Always present but not apparent at time of hospitalization

(B) Always acquired during course of hospitalization

(C) Always caused by medical personnel

(D) Always acquired during surgery
A nosocominal infection is

(A) Always present but not apparent at time of hospitalization

(B) Always acquired during course of hospitalization

(C) Always caused by medical personnel

(D) Always acquired during surgery
Proliferation of an organism such as bacillus anthracis in the blood of cattle would be classified as

(A) Blood dyscrasia

(B) Focal infection

(C) Local infection

(D) Septicemia
Proliferation of an organism such as bacillus anthracis in the blood of cattle would be classified as

(A) Blood dyscrasia

(B) Focal infection

(C) Local infection

(D) Septicemia
When normal flora prevent overgrowth of pathogens, it is called

(A) Microbial commensalism

(B) Microbial symbiosis

(C) Microbial antagonism

(D) Microbial parasitism
When normal flora prevent overgrowth of pathogens, it is called

(A) Microbial commensalism

(B) Microbial symbiosis

(C) Microbial antagonism

(D) Microbial parasitism
Gram-positive cocci that are arranged like grape clusters describes what genus of bacteria

(A) Escherichia

(B) Staphylococcus

(C) Streptococcus

(D) Actinomyces
Gram-positive cocci that are arranged like grape clusters describes what genus of bacteria

(A) Escherichia

(B) Staphylococcus

(C) Streptococcus

(D) Actinomyces
A collection of viral particles in a cell is known as?

(A) Viral accumulation

(B) Inclusion body

(C) Precipitate

(D) Granule
A collection of viral particles in a cell is known as?

(A) Viral accumulation

(B) Inclusion body

(C) Precipitate

(D) Granule
Facultatively anaerobic gram-negative rods that live in the intestinal tracts of healthy and sick animals describes what genus of bacteria?

(A) Clostridium

(B) Bacillus

(C) Escherichia

(D) Corynebacterium
Facultatively anaerobic gram-negative rods that live in the intestinal tracts of healthy and sick animals describes what genus of bacteria?

(A) Clostridium

(B) Bacillus

(C) Escherichia

(D) Corynebacterium
Generally, endotoxins are products of?

(A) Viruses

(B) Gram-negative bacteria

(C) Gram-positive bacteria

(D) Fungi
Generally, endotoxins are products of?

(A) Viruses

(B) Gram-negative bacteria

(C) Gram-positive bacteria

(D) Fungi
The microscopic morphology of streptococcus is described as

(A) Coccus in chains

(B) Coccus in grape like clusters

(C) Bacillus in chains

(D) Bacillus in grape like clusters
The microscopic morphology of streptococcus is described as

(A) Coccus in chains

(B) Coccus in grape like clusters

(C) Bacillus in chains

(D) Bacillus in grape like clusters
What organism will most likely grow on mannitol salt agar

(A) Streptococcus pyogenes

(B) Bacillus subtilis

(C) Clostridium perfringens

(D) Staphylococcus aureus
What organism will most likely grow on mannitol salt agar

(A) Streptococcus pyogenes

(B) Bacillus subtilis

(C) Clostridium perfringens

(D) Staphylococcus aureus
What organism will ferment mannitol?

(A) Streptococcus pyogenes

(B) Staphylococcus epidermidis

(C) Staphylococcus aureus

(D) Streptococcus mutans
What organism will ferment mannitol?

(A) Streptococcus pyogenes

(B) Staphylococcus epidermidis

(C) Staphylococcus aureus

(D) Streptococcus mutans
Streptococcus pyogenes is classified as lancefield

(A) Group A

(B) Group B

(C) Group C

(D) Group D
Streptococcus pyogenes is classified as lancefield

(A) Group A

(B) Group B

(C) Group C

(D) Group D
The organism that grows in and is considered a pathogen mainly of the mammary gland is

(A) Streptococcus pyogenes

(B) Staphylococcus aureus

(C) Streptococcus agalactiae

(D) Escherichia coli
The organism that grows in and is considered a pathogen mainly of the mammary gland is

(A) Streptococcus pyogenes

(B) Staphylococcus aureus

(C) Streptococcus agalactiae

(D) Escherichia coli
The CAMP test is specific for

(A) Streptococcus pyogenes

(B) Staphylococcus aureus

(C) Streptococcus agalactiae

(D) Escherichia coli
The CAMP test is specific for

(A) Streptococcus pyogenes

(B) Staphylococcus aureus

(C) Streptococcus agalactiae

(D) Escherichia coli
Warts are caused by what virus?

(A) Papilloma

(B) Variola

(C) Herpes

(D) Pox
Warts are caused by what virus?

(A) Papilloma

(B) Variola

(C) Herpes

(D) Pox
Dermatophytosis pertains to a?

(A) Veneral yeast infection

(B) Cutaneous mycosis

(C) Cutaneous bacterial infection

(D) Pyoderma
Dermatophytosis pertains to a?

(A) Veneral yeast infection

(B) Cutaneous mycosis

(C) Cutaneous bacterial infection

(D) Pyoderma
What oragnism exhibits fluorescence under UV light?

(A) Microsporum gypseum

(B) Trichophyton mentagrophytes

(C) Microsporum canis

(D) Epidermophyton floccosum
What oragnism exhibits fluorescence under UV light?

(A) Microsporum gypseum

(B) Trichophyton mentagrophytes

(C) Microsporum canis

(D) Epidermophyton floccosum
Pinkeye or contagious conjunctivitis in cattle is caused by?

(A) Hemophilus aegupti

(B) Moraxella bovis

(C) Streptococcus pyogenes

(D) Staphylococcus aureus
Pinkeye or contagious conjunctivitis in cattle is caused by?

(A) Hemophilus aegupti

(B) Moraxella bovis

(C) Streptococcus pyogenes

(D) Staphylococcus aureus
Dermatitis characterized by a blue-green purulent discharge is most likely caused by?

(A) Streptococcus pyogenes

(B) Staphylococcus aureus

(C) Corynebacterium pyogenes

(D) Pseudomonas aeruginosa
Dermatitis characterized by a blue-green purulent discharge is most likely caused by?

(A) Streptococcus pyogenes

(B) Staphylococcus aureus

(C) Corynebacterium pyogenes

(D) Pseudomonas aeruginosa
What organism often causes encephalitis in feedlot animals and encephalitis in people?

(A) Listeria monocytogenes

(B) Clostridium botulinum

(C) Proteus vulgaris

(D) Pseudomonas aeruginosa
What organism often causes encephalitis in feedlot animals and encephalitis in people?

(A) Listeria monocytogenes

(B) Clostridium botulinum

(C) Proteus vulgaris

(D) Pseudomonas aeruginosa
What species has the highest concentration of the tetanus organism in the feces?

(A) Dogs

(B) Cats

(C) People

(D) Horses
What species has the highest concentration of the tetanus organism in the feces?

(A) Dogs

(B) Cats

(C) People

(D) Horses
What sign is most likely to be caused by botulism toxicity in water fowl?

(A) Diarrhea

(B) Vomiting

(C) Tetanic spasms

(D) Limberneck
What sign is most likely to be caused by botulism toxicity in water fowl?

(A) Diarrhea

(B) Vomiting

(C) Tetanic spasms

(D) Limberneck
What organism causes tularemia?

(A) Yersinia pestis

(B) Franciesella tularensis

(C) Escherichia coli

(D) Fusobacterium necrophorum
What organism causes tularemia?

(A) Yersinia pestis

(B) Franciesella tularensis

(C) Escherichia coli

(D) Fusobacterium necrophorum
The major source of tularemia exposure in people is?

(A) Reavers

(B) Rats

(C) Rabbits

(D) Deer
The major source of tularemia exposure in people is?

(A) Reavers

(B) Rats

(C) Rabbits

(D) Deer
Bang method is a serum test used to detect?

(A) Proteus vulgaris

(B) Pseudomonas aeruginosa

(C) Streptococcus pyogenes

(D) Brucella abortus
Bang method is a serum test used to detect?

(A) Proteus vulgaris

(B) Pseudomonas aeruginosa

(C) Streptococcus pyogenes

(D) Brucella abortus
In most areas of the world, rats are the reservoir host of the plaque organism. However, in the western United States, the most common species for harboring this organism is

(A) Dogs

(B) Cats

(C) Beavers

(D) Prairie dogs
In most areas of the world, rats are the reservoir host of the plaque organism. However, in the western United States, the most common species for harboring this organism is

(A) Dogs

(B) Cats

(C) Beavers

(D) Prairie dogs
Which bacteria is pleomorphic

(A) Streptococcus

(B) Mycobacterium

(C) Pasteurella

(D) Corynebacterium
Which bacteria is pleomorphic

(A) Streptococcus

(B) Mycobacterium

(C) Pasteurella

(D) Corynebacterium
The kennel cough syndrome in dogs is often caused by a combination of boarding at a kennel, a viral infection, and an infection with?

(A) Pasteurella multocida

(B) Staphylococcus aureus

(C) Corynebacterium diphtheriae

(D) Bordetella bronchiseptica
The kennel cough syndrome in dogs is often caused by a combination of boarding at a kennel, a viral infection, and an infection with?

(A) Pasteurella multocida

(B) Staphylococcus aureus

(C) Corynebacterium diphtheriae

(D) Bordetella bronchiseptica
The tuberculin test uses what reagent?

(A) A freeze-dried tubercuiln antigen

(B) Small dose of a live bacterin

(C) Purified protein derivative of mycobacterium tuberculosis

(D) Organism closely related to mycobacterium tuberculosis
The tuberculin test uses what reagent?

(A) A freeze-dried tubercuiln antigen

(B) Small dose of a live bacterin

(C) Purified protein derivative of mycobacterium tuberculosis

(D) Organism closely related to mycobacterium tuberculosis
What organism often causes bacterial pneumonia in newborn foals?

(A) Streptococcus pneumoniae

(B) Klebsiella pneumoniae

(C) Mycoplasma pneumoniae

(D) Diplococcus pneumoniae
What organism often causes bacterial pneumonia in newborn foals?

(A) Streptococcus pneumoniae

(B) Klebsiella pneumoniae

(C) Mycoplasma pneumoniae

(D) Diplococcus pneumoniae
Potomac horse fever is caused by Ehrlichia risticii which is a/an?

(A) Gram-negative bacillus

(B) Gram-positive bacillus

(C) Obligate extracellular parasite

(D) Obligate intracellular parasite
Potomac horse fever is caused by Ehrlichia risticii which is a/an?

(A) Gram-negative bacillus

(B) Gram-positive bacillus

(C) Obligate extracellular parasite

(D) Obligate intracellular parasite
What virus is most difficult to destroy on an inanimate surface?

(A) Coronavirus

(B) Rotavirus

(C) Hepatitis virus

(D) Parvovirus
What virus is most difficult to destroy on an inanimate surface?

(A) Coronavirus

(B) Rotavirus

(C) Hepatitis virus

(D) Parvovirus
Cystitis is most often caused by?

(A) Gram negative cocci

(B) Gram-negative bacilli

(C) Gram-positive cocci

(D) Gram-positive bacilli
Cystitis is most often caused by?

(A) Gram negative cocci

(B) Gram-negative bacilli

(C) Gram-positive cocci

(D) Gram-positive bacilli
What organism is a spirochete?

(A) Corynebacterium pyogenes

(B) Streptococcus pyogenes

(C) Mycobacterium tuberculosis

(D) Leptospira grippotyphosa
What organism is a spirochete?

(A) Corynebacterium pyogenes

(B) Streptococcus pyogenes

(C) Mycobacterium tuberculosis

(D) Leptospira grippotyphosa
What organism causes strangles in horses?

(A) Staphylococcus aurues

(B) Streptococcus equi

(C) Corynebacterium equi

(D) Strongylus vulgaris
What organism causes strangles in horses?

(A) Staphylococcus aurues

(B) Streptococcus equi

(C) Corynebacterium equi

(D) Strongylus vulgaris
What characteristic is unique to mycobacterium?

(A) Spore former

(B) Anaerobic

(C) Easily killed by antibiotics

(D) Can survive phagocytosis
What characteristic is unique to mycobacterium?

(A) Spore former

(B) Anaerobic

(C) Easily killed by antibiotics

(D) Can survive phagocytosis
What organism has a cell membrane instead of a cell wall?

(A) Fungus

(B) Protozoan

(C) Yeast

(D) Alga
What organism has a cell membrane instead of a cell wall?

(A) Fungus

(B) Protozoan

(C) Yeast

(D) Alga
Which of the following is not a simple stain?

(A) Methylene blue

(B) Crystal violet

(C) Safranin

(D) Gram stain
Which of the following is not a simple stain?

(A) Methylene blue

(B) Crystal violet

(C) Safranin

(D) Gram stain
Ergot is a toxin produced by?

(A) Bacteria

(B) Viruses

(C) Protozoa

(D) Fungi
Ergot is a toxin produced by?

(A) Bacteria

(B) Viruses

(C) Protozoa

(D) Fungi
In culturing a bacterial sample, use of a septic technique ensures that?

(A) All of the bacteria in the sample arr destroyed

(B) Only bacteria in sample are transferred to culture medium

(C) Nothing will grow on the culture medium

(D) Multiple bacterial species will grow on the culture medium
In culturing a bacterial sample, use of a septic technique ensures that?

(A) All of the bacteria in the sample arr destroyed

(B) Only bacteria in sample are transferred to culture medium

(C) Nothing will grow on the culture medium

(D) Multiple bacterial species will grow on the culture medium
Escherichia coli is normally found?

(A) On the skin

(B) On the intestinal tract

(C) In the respiratory tract

(D) In the stomach
Escherichia coli is normally found?

(A) On the skin

(B) On the intestinal tract

(C) In the respiratory tract

(D) In the stomach
An organism that requires oxygen to grow and survive is defined as?

(A) Obligate anaerobe

(B) Aerobe

(C) Obligate aerobe

(D) Factultative anerobe
An organism that requires oxygen to grow and survive is defined as?

(A) Obligate anaerobe

(B) Aerobe

(C) Obligate aerobe

(D) Factultative anerobe
The main disadvantage of Quaternary ammonium compounds is that

(A) Weaken with evaporation

(B) Easily stain skin

(C) Organic compounds interfere with activity

(D) They lose oxygen radical and become water
The main disadvantage of Quaternary ammonium compounds is that

(A) Weaken with evaporation

(B) Easily stain skin

(C) Organic compounds interfere with activity

(D) They lose oxygen radical and become water
On a BAP, an area of complete hemolysis is classified as

(A) Alpha

(B) Beta

(C) Gamma

(D) Delta
On a BAP, an area of complete hemolysis is classified as

(A) Alpha

(B) Beta

(C) Gamma

(D) Delta
The enzyme catalase is used by bacteria to break down

(A) Proteins

(B) Superoxides

(C) Hydrogen peroxide

(D) Starches
The enzyme catalase is used by bacteria to break down

(A) Proteins

(B) Superoxides

(C) Hydrogen peroxide

(D) Starches
Johnes disease in sheep is caused by

(A) Campylobacter jejuni

(B) Mycobacterium paratuberculosis

(C) Corynebacterium diphtheriae

(D) Mycoplasma gallisepticum
Johnes disease in sheep is caused by

(A) Campylobacter jejuni

(B) Mycobacterium paratuberculosis

(C) Corynebacterium diphtheriae

(D) Mycoplasma gallisepticum