Foundations In Microbiology 9th Edition By Talaro – Test Bank

ch11
Student: ___________________________________________________________________________
1. Microbiological contaminants are best described as: A. unwanted microbes present on or in a substance.
B. any and all microbes present on or in a substance.
C. pathogenic microbes present on or in a substance.
D. vegetative microbes present on or in a substance.
E. None of the choices are correct.

2. Physical agents for controlling microbial growth include all of the following, except: A. ultraviolet radiation.
B. boiling water.
C. HEPA filters.
D. pasteurization.
E. hydrogen peroxide.

3. Which of the following microbial forms have the highest resistance to physical and chemical controls?
A. naked viruses
B. protozoan cysts
C. fungal spores
D. bacterial endospores
E. yeast

4. The process that destroys or removes all microorganisms and microbial forms including bacterial endospores is: A. disinfection.
B. sterilization.
C. antisepsis.
D. sanitization.
E. degermation.

5. The process of using a cleansing technique to mechanically remove and reduce microorganisms and debris to safe levels is: A. disinfection.
B. sterilization.
C. antisepsis.
D. sanitization.
E. degermation.

6. The use of a physical or chemical process to destroy vegetative pathogens on inanimate objects is: A. disinfection.
B. sterilization.
C. antisepsis.
D. sanitization.
E. degermation.

7. The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is:
A. disinfection.
B. sterilization.
C. antisepsis.
D. sanitization.
E. degermation.

8. Scrubbing or immersing the skin in chemicals to reduce the numbers of microbes on the skin is: A. disinfection.
B. sterilization.
C. antisepsis.
D. sanitization.
E. degermation.

9. Which of the following types of control agents would be used to achieve sterility? A. virucide
B. bactericide
C. germicide
D. sporicide
E. fungicide

10. Which is correct regarding the rate of microbial death?
A. cells die at increasingly greater rates
B. only older cells die in a culture
C. cells in a culture die at a constant rate
D. upon contact with the control agent, all cells die at one time E. cells become metabolically inactive but are never killed

ANSWERS
ch11 Key
1. A

2. E

3. D

4. B

5. D

6. A

7. C

8. E

9. D

10. C