Question 1

Match the description below with the correct item from this list.
-Blood agar plate in which blood cells have been lysed; used for growing fastidious respiratory bacteria

Accepted Answer

A)  MacConkey agar
B)  Phenylethyl alcohol agar
C)  Nutrient agar
D)  Tryptic soy agar
E)  Chocolate agarF) Xylose-lysine-deoxycholate agarG) Thayer-Martin agarH) C) and G)
I) B) and G)

Question 2

Media that contain complex organic substances such as blood for the growth of specific bacteria are referred to as

Accepted Answer

A)  enriched media.
B)  general-purpose media.
C)  differential media.
D)  reducing media.E) B) and C)
F) A) and B) A

Question 3

Nigrosin is a stain used in

Accepted Answer

A)  simple staining.
B)  gram staining.
C)  negative staining.
D)  acid-fast staining.E) A) and B)
F) All of the above

Question 4

Which of the following genera of bacteria need very specialized media for culturing?

Accepted Answer

A)  Spiroplasma
B)  Enterococcus
C)  Staphylococcus
D)  PseudomonasE) A) and D)
F) C) and D)

Question 5

A disinfectant is designed to be used only on __________ surfaces.

Accepted Answer

The answer of A disinfectant is designed to be used...

Question 6

Which of the following stains is generally used for the diagnosis of tuberculosis?

Accepted Answer

A)  Acid-fast stain
B)  Gram stain
C)  Negative stain
D)  Simple stainE) A) and B)
F) A) and D)

Question 7

Bacteria that show variation in cellular size and shape as a result of environmental conditions or age of the organisms are referred to as __________ bacteria.

Accepted Answer

The answer of Bacteria that show variation in cellular size...

Question 8

A procedure performed under sterile conditions uses the __________ technique.

Accepted Answer

The answer of A procedure performed under sterile conditions uses...

Question 9

In correct sequence,the five "I's" in microbiology stand for

Accepted Answer

A)  Inoculation, Inspection, Identification, Incubation, and Isolation.
B)  Isolation, Inoculation, Inspection, Identification, and Incubation.
C)  Inoculation, Incubation, Isolation, Inspection, and Identification.
D)  Inspection, Inoculation, Incubation, Isolation, and Identification.E) A) and B)
F) All of the above

Question 10

A medium that grows several different organisms that show visible differences in colony morphology is a __________ medium.

Accepted Answer

differential

Question 11

Which of the following is a general-purpose medium?

Accepted Answer

A)  Tryptic soy agar
B)  Blood agar
C)  Mannitol salt agar
D)  MacConkey agarE) A) and B)
F) A) and C)

Question 12

Match the description below with the correct item from this list.
-Selective medium for gram-positive bacteria while inhibiting gram-negative bacteria

Accepted Answer

A)  MacConkey agar
B)  Phenylethyl alcohol agar
C)  Nutrient agar
D)  Tryptic soy agar
E)  Chocolate agarF) Xylose-lysine-deoxycholate agarG) Thayer-Martin agarH) A) and G)
I) A) and B)

Question 13

Match the description below with the correct item from this list.
-Used for culture of stool samples to detect Salmonella

Accepted Answer

A)  MacConkey agar
B)  Phenylethyl alcohol agar
C)  Nutrient agar
D)  Tryptic soy agar
E)  Chocolate agarF) Xylose-lysine-deoxycholate agarG) Thayer-Martin agarH) A) and E)
I) B) and C) F

Question 14

Which of the following is considered to be a macronutrient for microorganisms?

Accepted Answer

A)  Folic acid
B)  Nitrogen
C)  Copper
D)  RiboflavinE) None of the above
F) All of the above

Question 15

Substances that kill bacteria are referred to as __________.

Accepted Answer

The answer of Substances that kill bacteria are referred to...

Question 16

An inanimate object or substance capable of transporting pathogens from one medium or individual to another is referred to as a

Accepted Answer

A)  vector.
B)  fomite.
C)  transporter.
D)  transposon.E) A) and B)
F) C) and D)

Question 17

The process by which the numbers of microbes on the human skin are reduced by scrubbing is called

Accepted Answer

A)  degermination.
B)  sanitization.
C)  disinfection.
D)  sterilization.E) B) and D)
F) A) and B)

Question 18

A saucer-shaped liquefaction of gelatin stabs is said to have a __________ appearance.

Accepted Answer

The answer of A saucer-shaped liquefaction of gelatin stabs is...

Question 19

Which of the following media is used to isolate Neisseria gonorrhoeae?

Accepted Answer

A)  Phenylethyl alcohol agar
B)  Thayer-Martin agar
C)  MacConkey agar
D)  Mannitol salt agarE) All of the above
F) B) and C)

Question 20

In an agar slant,bacterial colonies that appear separate or semiconfluent are referred to as

Accepted Answer

A)  filiform.
B)  echinulate.
C)  beaded.
D)  effuse.E) A) and D)
F) A) and C)

Exam 8: Microbiological Laboratory Techniques

Match the description below with the correct item from this list. -Blood agar plate in which blood cells have been lysed; used for growing fastidious respiratory bacteria

Correct AnswerverifiedShow Answer

Media that contain complex organic substances such as blood for the growth of specific bacteria are referred to as

Correct AnswerverifiedA

Nigrosin is a stain used in

Correct AnswerverifiedShow Answer

Which of the following genera of bacteria need very specialized media for culturing?

Correct AnswerverifiedShow Answer

A disinfectant is designed to be used only on __________ surfaces.

Correct AnswerverifiedShow Answer

Which of the following stains is generally used for the diagnosis of tuberculosis?

Correct AnswerverifiedShow Answer

Bacteria that show variation in cellular size and shape as a result of environmental conditions or age of the organisms are referred to as __________ bacteria.

Correct AnswerverifiedShow Answer

A procedure performed under sterile conditions uses the __________ technique.

Correct AnswerverifiedShow Answer

In correct sequence,the five "I's" in microbiology stand for

Correct AnswerverifiedShow Answer

A medium that grows several different organisms that show visible differences in colony morphology is a __________ medium.

Correct Answerverifieddifferential

Which of the following is a general-purpose medium?

Correct AnswerverifiedShow Answer

Match the description below with the correct item from this list. -Selective medium for gram-positive bacteria while inhibiting gram-negative bacteria

Correct AnswerverifiedShow Answer

Match the description below with the correct item from this list. -Used for culture of stool samples to detect Salmonella

Correct AnswerverifiedF

Which of the following is considered to be a macronutrient for microorganisms?

Correct AnswerverifiedShow Answer

Substances that kill bacteria are referred to as __________.

Correct AnswerverifiedShow Answer

An inanimate object or substance capable of transporting pathogens from one medium or individual to another is referred to as a

Correct AnswerverifiedShow Answer

The process by which the numbers of microbes on the human skin are reduced by scrubbing is called

Correct AnswerverifiedShow Answer

A saucer-shaped liquefaction of gelatin stabs is said to have a __________ appearance.

Correct AnswerverifiedShow Answer

Which of the following media is used to isolate Neisseria gonorrhoeae?

Correct AnswerverifiedShow Answer

In an agar slant,bacterial colonies that appear separate or semiconfluent are referred to as

Correct AnswerverifiedShow Answer

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differential

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F

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