UNIT 1-Module 2-Ch5_ Control of Prokaryotic Growth Review Questions.pdf

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UNIT 1-Module 2-Ch5_ Control of Prokaryotic Growth Review Questions.pdf

1 .   If an antimicrobial agent is bacteriostatic 6 . Ethylene oxide is a germicide that kills by reacting with
A. lipids
A. completes killing of bacteria occurs with it s use
B. it will only inhibit the bacterial growth
C. no viable organisms remain after it s use
B. RNA
C. cell wall
D. proteins
E. carbohydrates
D. it will kill only spores
E. it will bacteria and inhibit fungi
6 .   Ethylene oxide is a germicide that kills by reacting with
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7 .   Hydrogen peroxide is an effective germicide because
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2 .   During the process of pasteurization , food is
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8 .   Dry heat is used to sterilize
A. inoculating loops
B. glass pipettes
C. agar media
D. liquid media
E. inoculating loops and glass pipettes
3 .   The high - temperature - short - time method of treating foods
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9 .   Ionizing radiation kills microorganisms by
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4 .   Autoclaving uses________to sterilize .
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10 .   Low temperature storage is bacteriostatic to some bacteria and bactericidal to other s 5 . A low level disinfectant can not kill
A. endospores
B. enveloped viruses
C. fungi
D. all vegetative cells
A. True
B. False
E. none of the above are correct
5 .   A low level disinfectant can not kill
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11 .   Which of the following is mismatched ? 14 . Dirt and grease can interfere with the effectiveness of chemical disinfectants A. antiseptic→ disinfectant that is non-toxic enough to be used on skin
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14 .   Dirt and grease can interfere with the effectiveness of chemical disinfectants
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15 .   Which of the following is FALSE ?
A . Pressurized steam is the only method of heat treatment that reliably kills endospores
B. germicide→ kills bacteria and inactivates viruses
B . Aldehydes are useful in disinfecting living tissues
C. Filtration can not remove all viruses
C. pasteurization→ short heat treatment to kill disease causing organisms
D. Ultraviolet radiation kills by damaging DNA
E . High salt foods are preserved by reducing available water
D. bacteriostatic→ prevents growth of microorganisms
E. decontamination→ kills all organisms
16 .   _ ____________________ are cationic detergents non-toxic enough to be used to disinfect food preparation surfaces . 12 . The D value refers to
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12 .   The D value refers to
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17 .   Which of the following is FALSE concerning the commercial canning process ?
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13 .   Highly resistant microbes include :
A. Naked viruses
B. Pseudomonas species
C. Protozoan cysts and oocysts
E. cans are heated and the air is exhausted from the can
D. Mycobacterium species
E . All of the above are correct
18 .   A sterile environment is free of microbes including endospores , viruses and prions . 22 . You are working in a government laboratory in charge of destroying bioterrorism materials . An envelope containing the spore - forming bacterium that causes anthrax must be safely destroyed . What would be the best method for ensuring that the organism is killed ?
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22 .   You are working in a government laboratory in charge of destroying bioterrorism materials . An envelope containing the spore- forming bacterium that causes anthrax must be safely destroyed . What would be the best method for ensuring that the organism is killed ?
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19 .   An aqueous solution of 60 % isopropyl alcohol rapidly kills vegetative bacteria and fungi . This solutions does NOT :
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23 .   You are taking a tour of a municipal water treatment plant . Your guide discusses that the water is sterilized before it is pumped as drinking water What type of sterilization treatment should you expect to see on the tour ? 20 . High level disinfectants reliably destroy all but
A. fungi
B. mycobacteria
C. naked viruses
D. endospores
E. enveloped viruses
A. glutaraldehyde treatment
B. iodine treatment
C. autoclaving
20 .   High level disinfectants reliably destroy all but
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21 .   Surgical instruments and most microbiological media are sterilized through the process of :
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24 .   Which of the following best represents Joseph Lister ’s contribution to modern surgical practices ?
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Organic Chemistry
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Chapter 4 / Exercise 4.44
Organic Chemistry
Brown
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UNIT 1-Module 2-Ch5: Control of Prokaryotic Growth Review Questions 1 1. If an antimicrobial agent is bacteriostatic Ethylene oxide is a germicide that kills by reacting with A. completes killing of bacteria occurs with its use B. it will only inhibit the bacterial growth C. no viable organisms remain after its use D. it will kill only spores E. it will bacteria and inhibit fungi 2. During the process of pasteurization, food is 3. The high-temperature-short-time method of treating foods 4. Autoclaving uses________to sterilize. 5. A low level disinfectant cannot kill bacteriostatic to some bacteria and bactericidal to others A. endospores B. enveloped viruses C. fungi D. all vegetative cells E. none of the above are correct 6. Ethylene oxide is a germicide that kills by reacting with 7. Hydrogen peroxide is an effective germicide because 8. Dry heat is used to sterilize 9. Ionizing radiation kills microorganisms by A. damaging DNA 10. Low temperature storage is bacteriostatic to some bacteria and bactericidal to others
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
Organic Chemistry
The document you are viewing contains questions related to this textbook.
Chapter 4 / Exercise 4.44
Organic Chemistry
Brown
Expert Verified
UNIT 1-Module 2-Ch5: Control of Prokaryotic Growth Review Questions 11. Which of the following is mismatched? A. antiseptic→ disinfectant that is non-toxic enough to be used on skin B. germicide→ kills bacteria and inactivates viruses C. pasteurization→ short heat treatment to kill disease causing organisms D. bacteriostatic→ prevents growth of microorganisms E. decontamination→ kills all organisms
2
12. The D value refers to A. the chemical exposure time needed to kill all bacteria on a surface B. the exposure time it takes to kill a certain number of microorganisms C. the time required for 90% of the organisms to die under specific conditions
D. how long it takes cells to die under a particular temperature E. none of the above are correct

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