Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 6R
How do autoclaving, hot air, and pasteurization illustrate the concept of equivalent treatments?
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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 - 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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- Given the following common laboratory materials, which of the three methods of heat sterilization do you think is the most appropriate and practical to use in sterilizing them ? Why do you think so ? a) empty flask b)L-rod (glass rod c)10 ml glass pipet d) wire needles e)antibiotic solutionarrow_forwardListen Which of the following methods of microbial control is used most often with surgical equipment? a) autoclave b) sugar and salting c) dessication d) lyophilizationarrow_forwardWhat are the advantages of UV disinfection versus, or as acomplement to, chemical disinfection with chlorine?arrow_forward
- Write the limitations of sterilization by Dry heat?arrow_forwardChoose two from the following culture preservations that are best to use when only an ordinary refrigerator is available for storage: a) Drying b) Mineral oil overlay c) Freezing with liquid nitrogen d) Lyophilization e) Periodic transfer to fresh mediumarrow_forwardUV light is used in clean rooms and some operating rooms. what are the limitations of using UV light as a means of sterilization?arrow_forward
- How does pasteurization help us in our everyday life even before it was discovered?arrow_forwardThe thermal death point is best described as:(a) The highest temperature that will support growth of amicrobial culture(b) The length of time required for killing 100% of mi-crobes in a 24-hour culture that is heated to 100°C(c) The temperature at which a previously growing 24-hourculture will begin to die(d) The temperature at which 100% of the microbes in a24-hour culture will be killed in 10 minutesarrow_forwardWhy do you think autoclave sterilization of media is preferred over open flame?arrow_forward
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