Question 1

Which of the following media are defined and have an exact chemical composition?

Accepted Answer

A)  Complex media
B)  Synthetic media
C)  Enriched media
D)  Special mediaE) All of the above
F) B) and C)

Question 2

Match the description below with the correct item from this list.
-General-purpose medium frequently used as the base medium of other agar plate types

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) B) and F)
I) E) and G)

Question 3

Chemically,agar is a

Accepted Answer

A)  protein.
B)  lipid.
C)  carbohydrate.
D)  nucleic acid.E) A) and D)
F) C) and D)

Question 4

Match the description below with the correct item from this list.
-Most commonly used general medium in the laboratory

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 D)
I) All of the above

Question 5

Which of the following is a biological test organism for validating dry or moist heat sterilization?

Accepted Answer

A)  Bacillus subtilis var.niger
B)  Escherichia coli
C)  Staphylococcus aureus
D)  Staphylococcus epidermidisE) None of the above
F) A) and B)

Question 6

The stain used to identify bacteria with a large amount of peptidoglycan in their cell walls is the

Accepted Answer

A)  acid-fast stain.
B)  methylene blue stain.
C)  Gram stain.
D)  negative stain.E) A) and B)
F) B) and D)

Question 7

Which of the following microorganisms can be cultured only in the footpads of mice or a species of armadillo?

Accepted Answer

A)  Mycobacterium tuberculosis
B)  Mycobacterium leprae
C)  Neisseria gonorrhoeae
D)  MycoplasmaE) None of the above
F) All of the above

Question 8

A common laboratory medium is nutrient broth,which contains beef extract and __________.

Accepted Answer

The answer of A common laboratory medium is nutrient broth,which...

Question 9

Bacteria that appear red after gram staining are said to be gram-__________.

Accepted Answer

The answer of Bacteria that appear red after gram staining...

Question 10

The destruction of all microorganisms and their endospores is referred to as

Accepted Answer

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

Question 11

A saucer-shaped liquefaction in a gelatin stab is referred to as

Accepted Answer

A)  napiform.
B)  saccate.
C)  crateriform.
D)  stratiform.E) A) and B)
F) C) and D)

Question 12

Which of the following media is often used to grow Mycobacterium tuberculosis?

Accepted Answer

A)  Blood agar
B)  MacConkey agar
C)  Heart infusion broth
D)  Middlebrook's mediumE) A) and B)
F) A) and C)

Question 13

Which of the following stains is the most widely used differential stain in hematology laboratories?

Accepted Answer

A)  Carbolfuchsin stain
B)  Ziehl-Neelson stain
C)  Kinyoun stain
D)  Wright's stainE) B) and C)
F) A) and B)

Question 14

A culture that contains a single species of an organism is a __________ culture.

Accepted Answer

The answer of A culture that contains a single species...

Exam 8: Microbiological Laboratory Techniques

Which of the following media are defined and have an exact chemical composition?

Correct Answer
verified

Match the description below with the correct item from this list. -General-purpose medium frequently used as the base medium of other agar plate types

Correct Answer
verified

Which of the following stains is the most widely used differential stain in hematology laboratories?

Correct Answer
verified

Bacteria that appear red after gram staining are said to be gram-__________.

Correct Answer
verified

A culture that contains a single species of an organism is a __________ culture.

Correct Answer
verified

Which of the following media is often used to grow Mycobacterium tuberculosis?

Correct Answer
verified

Match the description below with the correct item from this list. -Most commonly used general medium in the laboratory

Correct Answer
verified

Chemically,agar is a

Correct Answer
verified

Which of the following is a biological test organism for validating dry or moist heat sterilization?

Correct Answer
verified

A saucer-shaped liquefaction in a gelatin stab is referred to as

Correct Answer
verified

A common laboratory medium is nutrient broth,which contains beef extract and __________.

Correct Answer
verified

Which of the following microorganisms can be cultured only in the footpads of mice or a species of armadillo?

Correct Answer
verified

The destruction of all microorganisms and their endospores is referred to as

Correct Answer
verified

The stain used to identify bacteria with a large amount of peptidoglycan in their cell walls is the

Correct Answer
verified

Exam 8: Microbiological Laboratory Techniques

Which of the following media are defined and have an exact chemical composition?

Correct AnswerverifiedShow Answer

Match the description below with the correct item from this list. -General-purpose medium frequently used as the base medium of other agar plate types

Correct AnswerverifiedShow Answer

Which of the following stains is the most widely used differential stain in hematology laboratories?

Correct AnswerverifiedShow Answer

Bacteria that appear red after gram staining are said to be gram-__________.

Correct AnswerverifiedShow Answer

A culture that contains a single species of an organism is a __________ culture.

Correct AnswerverifiedShow Answer

Which of the following media is often used to grow Mycobacterium tuberculosis?

Correct AnswerverifiedShow Answer

Match the description below with the correct item from this list. -Most commonly used general medium in the laboratory

Correct AnswerverifiedShow Answer

Chemically,agar is a

Correct AnswerverifiedShow Answer

Which of the following is a biological test organism for validating dry or moist heat sterilization?

Correct AnswerverifiedShow Answer

A saucer-shaped liquefaction in a gelatin stab is referred to as

Correct AnswerverifiedShow Answer

A common laboratory medium is nutrient broth,which contains beef extract and __________.

Correct AnswerverifiedShow Answer

Which of the following microorganisms can be cultured only in the footpads of mice or a species of armadillo?

Correct AnswerverifiedShow Answer

The destruction of all microorganisms and their endospores is referred to as

Correct AnswerverifiedShow Answer

The stain used to identify bacteria with a large amount of peptidoglycan in their cell walls is the

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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