Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 9MCQ
A classmate is trying to determine how a disinfectant might kill cells. You observed that when he spilled the disinfectant in your reduced litmus milk, the litmus turned blue again. You suggest to your classmate that
- a. the disinfectant might inhibit cell wall synthesis.
- b. the disinfectant might oxidize molecules.
- c. the disinfectant might inhibit protein synthesis.
- d. the disinfectant might denature proteins.
- e. he take his work away from yours.
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A scientist develops a new medication that is a protein compound and must be administered by injection. Which of the following would be the most effective and safest means of preparing a nearly sterile solution of the new medication?
Select one:
a.
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d.
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Attached below is the study about the effects of handwashing and the effectiveness of soap against bacteria. What conclusions can be generated from this result?
A
C
before washing hands
10 second hand wash
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hot water only rinse
30 second hand wash
Figure 8: Agar plates with bacteria A) before washing hands B) after rinsing hands in hot water C) After washing
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Chapter 7 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 7 - The thermal death time for a suspension of...Ch. 7 - If pasteurization does not achieve sterilization,...Ch. 7 - Thermal death point is not considered an accurate...Ch. 7 - Prob. 4RCh. 7 - DRAW IT A bacterial culture was in log phase in...Ch. 7 - How do autoclaving, hot air, and pasteurization...Ch. 7 - How do salts and sugars preserve foods? Why are...Ch. 7 - Prob. 8RCh. 7 - A large hospital washes burn patients in a...Ch. 7 - Prob. 10R
Ch. 7 - Which of the following does not kill endospores?...Ch. 7 - Which of the following is most effective for...Ch. 7 - Prob. 3MCQCh. 7 - Which of the following cannot be used to sterilize...Ch. 7 - Prob. 5MCQCh. 7 - The data were obtained from a use-dilution test...Ch. 7 - The data were obtained from a use-dilution test...Ch. 7 - Prob. 8MCQCh. 7 - A classmate is trying to determine how a...Ch. 7 - Which of the following is most likely to be...Ch. 7 - Prob. 1ACh. 7 - For each of the following bacteria, explain why it...Ch. 7 - A use-dilution test was used to evaluate two...Ch. 7 - To determine the lethal action of microwave...Ch. 7 - Entamoeba histolytica and Giardia lamblia were...Ch. 7 - Between March 9 and April 12five chronic...Ch. 7 - Prob. 3CAE
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