© 2013 Pearson Education, Inc. Chapter 7: The Control of Microbial Growth $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Terminology Rate of.

© 2013 Pearson Education, Inc.

Chapter 7: The Control of Microbial Growth

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TerminologyRate of

Microbial Death

Physical Methods

Chemical Methods

Chemical Agents

FINAL ROUND

© 2013 Pearson Education, Inc.

Topic 1: Terminology

$100 Question

The removal or destruction of ALL forms of microbial life is called

a. sterilization.

b. disinfection.

c. pasteurization.

d. sanitization.

ANSWER

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© 2013 Pearson Education, Inc.

Topic 1: Terminology

$100 Answer

The removal or destruction of ALL forms of microbial life is called

a. sterilization.

b. disinfection.

c. pasteurization.

d. sanitization.

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© 2013 Pearson Education, Inc.

Topic 1: Terminology

$200 Question

The destruction of vegetative pathogens is called

a. sanitization.

b. commercial sterilization.

c. disinfection.

d. antisepsis.

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ANSWER

© 2013 Pearson Education, Inc.

Topic 1: Terminology

$200 Answer

The destruction of vegetative pathogens is called

a. sanitization.

b. commercial sterilization.

c. disinfection.

d. antisepsis.

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© 2013 Pearson Education, Inc.

Topic 1: Terminology

$300 Question

What treatment is intended to lower microbial counts on eating and drinking utensils to safe public health levels?

a. sanitization

b. sterilization

c. pasteurization

d. antisepsis

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ANSWER

© 2013 Pearson Education, Inc.

Topic 1: Terminology

$300 Answer

What treatment is intended to lower microbial counts on eating and drinking utensils to safe public health levels?

a. sanitization

b. sterilization

c. pasteurization

d. antisepsis

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© 2013 Pearson Education, Inc.

Topic 1: Terminology

$400 Question

The absence of significant contamination is called

a. sepsis.

b. bacteriostasis.

c. asepsis.

d. antisepsis.

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ANSWER

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Topic 1: Terminology

$400 Answer

The absence of significant contamination is called

a. sepsis.

b. bacteriostasis.

c. asepsis.

d. antisepsis.

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© 2013 Pearson Education, Inc.

Topic 1: Terminology

$500 Question

Commercial sterilization is a limited heat treatment to destroy

a. Streptococcus pyogenes.

b. Clostridium tetani.

c. Staphylococcus aureus.

d. Clostridium botulinum endospores.

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ANSWER

© 2013 Pearson Education, Inc.

Topic 1: Terminology

$500 Answer

Commercial sterilization is a limited heattreatment to destroy

a. Streptococcus pyogenes.

b. Clostridium tetani.

c. Staphylococcus aureus.

d. Clostridium botulinum endospores.

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© 2013 Pearson Education, Inc.

Which of the following BEST describes the pattern of microbial death?

a. The cells in a population die at a constant rate.

b. All the cells in a culture die at once.

c. Not all of the cells in a culture are killed.

d. The pattern varies, depending on the species.

Topic 2: Rate of Microbial Death

$100 Question

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ANSWER

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Topic 2: Rate of Microbial Death

$100 Answer

Which of the following BEST describes the pattern of microbial death?

a. The cells in a population die at a constant rate.

b. All the cells in a culture die at once.

c. Not all of the cells in a culture are killed.

d. The pattern varies, depending on the species.

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The time it takes to kill a microbial population is

a. dependent on heat.

b. proportional to the number of microbes.

c. dependent on life cycle phases.

d. dependent on chemicals.

Topic 2: Rate of Microbial Death

$200 Question

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ANSWER

© 2013 Pearson Education, Inc.

The time it takes to kill a microbial population is

a. dependent on heat.

b. proportional to the number of microbes.

c. dependent on life cycle phases.

d. dependent on chemicals.

Topic 2: Rate of Microbial Death

$200 Answer

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© 2013 Pearson Education, Inc.

Damage to which structure causes cellularcomponents to leak into the surrounding medium?

a. cell wall

b. plasma membrane

c. cytoplasm

d. glycocalyx

Topic 2: Rate of Microbial Death

$300 Question

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ANSWER

© 2013 Pearson Education, Inc.

Damage to which structure causes cellularcomponents to leak into the surroundingmedium?

a. cell wall

b. plasma membrane

c. cytoplasm

d. glycocalyx

Topic 2: Rate of Microbial Death

$300 Answer

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Topic 2: Rate of Microbial Death

$400 Question

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ANSWER

Which of the following types of bond are NOT important in maintaining the shape of proteins?

a. peptide bonds

b. hydrogen bonds

c. disulfide bonds

d. covalent bonds

© 2013 Pearson Education, Inc.

Topic 2: Rate of Microbial Death

$400 Answer

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Which of the following types of bond are NOT important in maintaining the shape of proteins?

a. peptide bonds

b. hydrogen bonds

c. disulfide bonds

d. covalent bonds

© 2013 Pearson Education, Inc.

Topic 2: Rate of Microbial Death

$500 Question

Which of the following is NOT a factor that influences the effectiveness of antimicrobial treatments?

a. microbial characteristics

b. number of microbes

c. time of day

d. presence of a biofilm

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ANSWER

© 2013 Pearson Education, Inc.

Topic 2: Rate of Microbial Death

$500 Answer

Which of the following is NOT a factor that influences the effectiveness of antimicrobial treatments?

a. microbial characteristics

b. number of microbes

c. time of day

d. presence of a biofilm

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© 2013 Pearson Education, Inc.

Topic 3: Physical Methods

$100 Question

To sterilize heat-labile solutions, one should use

a. dry heat.

b. an autoclave.

c. membrane filtration.

d. pasteurization.

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ANSWER

© 2013 Pearson Education, Inc.

Topic 3: Physical Methods

$100 Answer

To sterilize heat-labile solutions, one should use

a. dry heat.

b. an autoclave.

c. membrane filtration.

d. pasteurization.

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© 2013 Pearson Education, Inc.

Topic 3: Physical Methods

$200 Question

Which method kills microorganisms primarily by the coagulation of proteins (denaturation)?

a. filtration

b. radiation

c. desiccation

d. moist heat

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ANSWER

© 2013 Pearson Education, Inc.

Topic 3: Physical Methods

$200 Answer

Which method kills microorganisms primarily by the coagulation of proteins (denaturation)?

a. filtration

b. radiation

c. desiccation

d. moist heat

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© 2013 Pearson Education, Inc.

The phosphatase test is used to determine whether which one of the following processes was carried out correctly?

a. radiation

b. filtration

c. desiccation

d. pasteurization

Topic 3: Physical Methods

$300 Question

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ANSWER

© 2013 Pearson Education, Inc.

Topic 3: Physical Methods

$300 Answer

The phosphatase test is used to determine whether which one of the following processes was carried out correctly?

a. radiation

b. filtration

c. desiccation

d. pasteurization

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© 2013 Pearson Education, Inc.

Topic 3: Physical Methods

$400 Question

Flaming is one of the simplest methods of

a. pasteurization.

b. dry heat sterilization.

c. moist heat.

d. desiccation.

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ANSWER

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Topic 3: Physical Methods

$400 Answer

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Flaming is one of the simplest methods of

a. pasteurization.

b. dry heat sterilization.

c. moist heat.

d. desiccation.

© 2013 Pearson Education, Inc.

Topic 3: Physical Methods

$500 Question

The lowest temperature at which all of the microorganisms in a particular liquid suspension will be killed in 10 minutes is called

a. thermal death point.

b. thermal death time.

c. decimal reduction time.

d. decimal reduction point.

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ANSWER

© 2013 Pearson Education, Inc.

Topic 3: Physical Methods

$500 Answer

The lowest temperature at which all of the microorganisms in a particular liquid suspension will be killed in 10 minutes is called

a. thermal death point.

b. thermal death time.

c. decimal reduction time.

d. decimal reduction point.

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© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$100 Question

Sterilization can be achieved by using

a. alcohol.

b. soap.

c. chlorine.

d. ethylene oxide.

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ANSWER

© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$100 Answer

Sterilization can be achieved by using

a. alcohol.

b. soap.

c. chlorine.

d. ethylene oxide.

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© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$200 Question

Which method of evaluating disinfectants is the currently used standard?

a. use-dilution test

b. use-diffusion test

c. disk-dilution test

d. disk-diffusion test

ANSWER

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© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$200 Answer

Which method of evaluating disinfectants is the currently used standard?

a. use-dilution test

b. use-diffusion test

c. disk-dilution test

d. disk-diffusion test

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© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$300 Question

Which of the following is used on environmental surfaces, instruments, skin surfaces, and mucous membranes?

a. nitrites

b. ozone

c. phenolics

d. ethylene oxide

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ANSWER

© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$300 Answer

Which of the following is used on environmental surfaces, instruments, skin surfaces, and mucous membranes?

a. nitrites

b. ozone

c. phenolics

d. ethylene oxide

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© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$400 Question

Ethanol can be used as an effective bactericide when used at a concentration of

a. 70%.

b. 50%.

c. 40%.

d. 100%.

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ANSWER

© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$400 Answer

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Ethanol can be used as an effectivebactericide when used at a concentration of

a. 70%.

b. 50%.

c. 40%.

d. 100%.

© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$500 Question

Which of the following is NOT used to preserve foods?

a. sulfur dioxide

b. sodium nitrite

c. potassium sorbate

d. biguanides

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ANSWER

© 2013 Pearson Education, Inc.

Topic 4: Chemical Methods

$500 Answer

Which of the following is NOT used to preserve foods?

a. sulfur dioxide

b. sodium nitrite

c. potassium sorbate

d. biguanides

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© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$100 Question

Which of the following is the MOST useful for disinfecting medical instruments?

a. quats

b. chlorine

c. phenol

d. benzoic acid

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ANSWER

© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$100 Answer

Which of the following is the MOST useful for disinfecting medical instruments?

a. quats

b. chlorine

c. phenol

d. benzoic acid

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© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$200 Question

Which of the following is/are used to mechanically remove microbes through scrubbing?

a. alcohol

b. biguanides

c. detergents

d. quats

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ANSWER

© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$200 Answer

Which of the following is/are used to mechanically remove microbes through scrubbing?

a. alcohol

b. biguanides

c. detergents

d. quats

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© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$300 Question

Which chemical agents cause a disruption of the plasma membrane and denaturation of enzymes?

a. phenolics

b. biguanides

c. heavy metals

d. halogens

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ANSWER

© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$300 Answer

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Which chemical agents cause a disruption of the plasma membrane and denaturation of enzymes?

a. phenolics

b. biguanides

c. heavy metals

d. halogens

© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$400 Question

Which agents cause denaturation of enzymes and other essential proteins?

a. aldehydes

b. heavy metals

c. peroxygens

d. nitrates

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ANSWER

© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$400 Answer

Which agents cause denaturation of enzymes and other essential proteins?

a. aldehydes

b. heavy metals

c. peroxygens

d. nitrates

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© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$500 Question

What chemical is used to prevent molds from growing in cheese and soft drinks?

a. sorbic acid

b. calcium propionate

c. sulfur dioxide

d. sodium nitrate

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ANSWER

© 2013 Pearson Education, Inc.

Topic 5: Chemical Agents

$500 Answer

What chemical is used to prevent molds from growing in cheese and soft drinks?

a. sorbic acid

b. calcium propionate

c. sulfur dioxide

d. sodium nitrate

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© 2013 Pearson Education, Inc.

FINAL ROUND Question

What chemical selectively inhibits certain iron-containing enzymes of Clostridium botulinum?

a. sodium benzoate

b. sodium nitrate

c. sodium nitrite

d. calcium propionate

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ANSWER

© 2013 Pearson Education, Inc.

FINAL ROUND Answer

What chemical selectively inhibits certain iron-containing enzymes of Clostridium botulinum?

a. sodium benzoate

b. sodium nitrate

c. sodium nitrite

d. calcium propionate

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