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Multiple Choice

This activity contains 20 questions.

Question 1
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Sterilization is the:
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Question 2
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An antiseptic is used when one needs to remove microbes from:
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Question 3
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Foods to be canned need not be sterile. However, all       of Clostridium botulinum must be killed.
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Question 4
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Some antimicrobial treatments kill microbes; some inhibit growth. Which term refers to an agent that inhibits bacterial growth?
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Question 5
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Which of the following is not a major target for action of antimicrobials?
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Question 6
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Decimal reduction time is the time in minutes in which       of the population at a given temperature will be killed.
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Question 7
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Which is not a characteristic of the autoclave?
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Question 8
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Milk that you have never opened spoils in the refrigerator. A sample reveals the presence of microorganisms. The most likely explanation is:
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Question 9
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Pasteurization was first used by Pasteur to control spoilage of:
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Question 10
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Choose the best method for the sterilization of an enzyme solution.
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Question 11
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The bactericidal effect of UV light is attributed to damage to:
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Question 12
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Packages of milk and coffee creamers may be stored without refrigeration if they have been sterilized by:
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Question 13
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All of the following methods are used for food preservation except:
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Question 14
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Some microbes are very resistant to antimicrobial chemicals. Which of the following would be the easiest to kill?
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Question 15
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Which type of radiation is least effective in killing microbes?
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Question 16
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The first disinfectant used by Lister was      .
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Question 17
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Alcohol is most effective when used as a       solution.
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Question 18
18 All of the following are examples of microbial control using heavy metals except:
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Question 19
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      is a compound found in antimicrobial soaps that targets gram-positive bacteria.
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Question 20
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The following may be listed on the ingredients of your favorite snack food. Which of the following is not antimicrobial?
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