Question 1

Agents that kill microbes are classified as __________.

Accepted Answer

The answer of Agents that kill microbes are classified as...

Question 2

Autoclaving will usually destroy/inactivate all fungi,bacteria,viruses,and most bacterial spores but will not necessarily eliminate

Accepted Answer

A)  neurotoxins.
B)  prions.
C)  protozoan cysts.
D)  mycoplasmas.E) All of the above
F) A) and D)

Question 3

Match the description below with the correct item from this list.
-Irradiation

Accepted Answer

A)  Iodine
B)  Triclosan
C)  Aldehydes
D)  Quaternary compounds
E)  Damage to DNAF) MercuryG) Osmotic pressureH) PenicillinI) A) and B)
J) D) and E)

Question 4

Ionizing radiation involves all of the following except

Accepted Answer

A)  UV light
B)  Gamma rays
C)  Electron beams
D)  X-raysE) None of the above
F) A) and D)

Question 5

The technique that combines freezing and drying to preserve microbes and other cells is

Accepted Answer

A)  desiccation.
B)  lyophilization.
C)  pasteurization.
D)  radiation.E) B) and C)
F) A) and D)

Question 6

The term "zone of inhibition" is used in which of the following procedures?

Accepted Answer

A)  Use-dilution test
B)  Growth inhibition test
C)  Disk-diffusion test
D)  Multiple inhibition testE) None of the above
F) A) and D)

Question 7

Which of the following methods is the simplest heat-related method to sterilize metal?

Accepted Answer

A)  Incineration
B)  Autoclaving
C)  Direct flaming
D)  Indirect heatingE) A) and C)
F) All of the above

Question 8

High salt or sugar content/concentrations make use of ____________ to destroy or inhibit the growth of microorganisms.

Accepted Answer

The answer of High salt or sugar content/concentrations make use...

Question 9

Chlorine belongs to which of the following chemical groups?

Accepted Answer

A)  Halogens
B)  Heavy metals
C)  Phenols
D)  AlcoholsE) C) and D)
F) None of the above

Question 10

Match the description below with the correct item from this list.
-Halogen

Accepted Answer

A)  Iodine
B)  Triclosan
C)  Aldehydes
D)  Quaternary compounds
E)  Damage to DNAF) MercuryG) Osmotic pressureH) PenicillinI) D) and G)
J) E) and H)

Question 11

Which of the following has a higher resistance to environmental stresses than the others?

Accepted Answer

A)  Bacterial endospores
B)  Fungal spores
C)  Enveloped viruses
D)  Vegetative bacterial cellsE) A) and B)
F) A) and C)

Question 12

Antimicrobial agents that are specifically designed to be used on living tissues are referred to as __________.

Accepted Answer

The answer of Antimicrobial agents that are specifically designed to...

Exam 7: Physical and Chemical Methods of Control

Autoclaving will usually destroy/inactivate all fungi,bacteria,viruses,and most bacterial spores but will not necessarily eliminate

Correct Answer
verified

Agents that kill microbes are classified as __________.

Correct Answer
verified

Chlorine belongs to which of the following chemical groups?

Correct Answer
verified

The technique that combines freezing and drying to preserve microbes and other cells is

Correct Answer
verified

Which of the following has a higher resistance to environmental stresses than the others?

Correct Answer
verified

Match the description below with the correct item from this list. -Irradiation

Correct Answer
verified

Ionizing radiation involves all of the following except

Correct Answer
verified

Antimicrobial agents that are specifically designed to be used on living tissues are referred to as __________.

Correct Answer
verified

Which of the following methods is the simplest heat-related method to sterilize metal?

Correct Answer
verified

The term "zone of inhibition" is used in which of the following procedures?

Correct Answer
verified

High salt or sugar content/concentrations make use of ____________ to destroy or inhibit the growth of microorganisms.

Correct Answer
verified

Match the description below with the correct item from this list. -Halogen

Correct Answer
verified

Exam 7: Physical and Chemical Methods of Control

Autoclaving will usually destroy/inactivate all fungi,bacteria,viruses,and most bacterial spores but will not necessarily eliminate

Correct AnswerverifiedShow Answer

Agents that kill microbes are classified as __________.

Correct AnswerverifiedShow Answer

Chlorine belongs to which of the following chemical groups?

Correct AnswerverifiedShow Answer

The technique that combines freezing and drying to preserve microbes and other cells is

Correct AnswerverifiedShow Answer

Which of the following has a higher resistance to environmental stresses than the others?

Correct AnswerverifiedShow Answer

Match the description below with the correct item from this list. -Irradiation

Correct AnswerverifiedShow Answer

Ionizing radiation involves all of the following except

Correct AnswerverifiedShow Answer

Antimicrobial agents that are specifically designed to be used on living tissues are referred to as __________.

Correct AnswerverifiedShow Answer

Which of the following methods is the simplest heat-related method to sterilize metal?

Correct AnswerverifiedShow Answer

The term "zone of inhibition" is used in which of the following procedures?

Correct AnswerverifiedShow Answer

High salt or sugar content/concentrations make use of ____________ to destroy or inhibit the growth of microorganisms.

Correct AnswerverifiedShow Answer

Match the description below with the correct item from this list. -Halogen

Correct AnswerverifiedShow Answer

Correct Answer
verified

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