Microbiology: An Introduction
11th Edition
ISBN: 9780321733603
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: Benjamin Cummings
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Chapter 7, Problem 3MCQ
Summary Introduction
Introduction:
All cells are surrounded by a plasma membrane. The membrane is composed of a phospholipid bilayer arranged back-to-back. The membrane is also covered in places with cholesterol molecules and proteins. Disinfecting without disrupting the plasma membrane requires organic compound like iodine.
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Which of the following is not used as an antiseptic?
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Choose the combination of answers that most accurately completes the statement.Detergents are a. high-level germicides c. excellent antiseptics b. low-level germicides d. used in disinfecting surgical instruments
Chapter 7 Solutions
Microbiology: An Introduction
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 - To determine the lethal action of microwave...Ch. 7 - A use-dilution test was used to evaluate two...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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- Which of the following are antimicrobial halogens? Select all that apply. a. iodophores b. bromine c. chlorine d. iodinearrow_forwardWhich of following statements is TRUE about antiseptics and disinfectants? A. Disc diffusion works because the disc is soaked in bacteria and is the exposed to antimicrobial. B. You can tell the characteristics of the zone inhibition whether an organism is cidal or static in its effect. C.The shape of an object being cleaned may influence the effectiveness of germicides D. Gram + organisms are more resistant than Gram - organisms E. A large zone of inhibition shows bactericidal effectarrow_forwardThe most versatile method of sterilizing heat-sensitive liquids isa. UV radiation b. exposure to ozone c. beta propiolactone d. filtrationarrow_forward
- The use of sodium chlorite to inhibit the growth of Shigella in drinking water refers to ? O A. Sterilization OB. Antisepsis O C. Disinfection D. all of the above [a, b & c] E. a & carrow_forwardChoose the combination of answers that most accurately completes the statement. Detergents are a. high-level germicides c. excellent antiseptics b. low-level germicides d. used in disinfecting surgical instruments followingarrow_forwardNeutralization of residual disinfectant could be made by: a. Dilution if the concentration exponent is high b. Dilution if the concentration exponent is low c. Adding specific agent e.g. 3% Tween 80 d. Either a or c e. Either b or carrow_forward
- The mechanical removal of microbes from a limited area of living tissue is referred to as -- a. None of the above b. disinfection c. pasteurization d. antisepsis e. sterilizationarrow_forwardMotility is best observed with a a. hanging drop preparation c. streak plate b. negative stain d. flagellar stainarrow_forwardAlcohol as a disinfectant can be effective against all of the following except: a. HIV b. Hepatitis B c. Rota virus d. Hepatitis Carrow_forward
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