MICROBIOLOGY WITH DISEASE BY TAXONOMY
5th Edition
ISBN: 9781323745229
Author: BAUMAN
Publisher: PEARSON
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Chapter 9, Problem 3TMW
Summary Introduction
To determine
The reason behind the use of Bacillus endospores as sterility indicators.
Introduction:
Endospores of bacteria such as Bacillus are used as biological indicator of sterility. The endospores of bacteria are impregnated into tape and after autoclaving; the tape is aseptically inoculated into sterile broth. The original material is said to be sterile, if there is no bacterial growth appears.
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Chapter 9 Solutions
MICROBIOLOGY WITH DISEASE BY TAXONOMY
Ch. 9 - In practical terms in everyday use, which of the...Ch. 9 - Prob. 2MCCh. 9 - Prob. 3MCCh. 9 - Prob. 4MCCh. 9 - Prob. 5MCCh. 9 - The endospores or which organism can be used as a...Ch. 9 - A company that manufactures an antimicrobial...Ch. 9 - Prob. 8MCCh. 9 - Prob. 9MCCh. 9 - Prob. 10MC
Ch. 9 - Prob. 11MCCh. 9 - Which of the following adjectives best describes a...Ch. 9 - Biosafety Level 3 includes ________. a. double...Ch. 9 - Prob. 14MCCh. 9 - Prob. 15MCCh. 9 - Prob. 16MCCh. 9 - Prob. 17MCCh. 9 - Prob. 18MCCh. 9 - Prob. 19MCCh. 9 - Prob. 20MCCh. 9 - Prob. 1SACh. 9 - Compare and contrast four tests that have been...Ch. 9 - Prob. 3SACh. 9 - Prob. 4SACh. 9 - Prob. 5SACh. 9 - Describe five physical methods of microbial...Ch. 9 - Prob. 7SACh. 9 - Prob. 8SACh. 9 - Prob. 9SACh. 9 - Compare and contrast the action of alcohols,...Ch. 9 - Prob. 11SACh. 9 - Why are alcohols more effective in a 70% solution...Ch. 9 - Contrast the structures and actions of soaps and...Ch. 9 - What are some advantages and disadvantages of...Ch. 9 - Prob. 15SACh. 9 - Calculate the decimal reduction time (D) for the...Ch. 9 - Prob. 2VICh. 9 - Prob. 1CTCh. 9 - Is desiccation the only antimicrobial effect...Ch. 9 - Prob. 3CTCh. 9 - Prob. 4CTCh. 9 - Over 1000 people developed severe diarrhea, and at...Ch. 9 - An over-the-counter medicated foot powder contains...Ch. 9 - Prob. 7CTCh. 9 - Prob. 8CTCh. 9 - Explain why quaternary ammonium compounds are not...Ch. 9 - Prob. 10CTCh. 9 - Would you expect Gram-negative bacteria or...Ch. 9 - Where should you place a sterilization indicator...Ch. 9 - Why is liquid water necessary for microbial...Ch. 9 - Prob. 14CTCh. 9 - During the fall 2001 bioterrorist attack in which...Ch. 9 - Prob. 16CTCh. 9 - Prob. 17CTCh. 9 - Prob. 1CMCh. 9 - Why does milk eventually go bad despite being...Ch. 9 - Why are BSL-4 suits pressurized? Why not just wear...Ch. 9 - Prob. 3TMWCh. 9 - Prob. 4TMWCh. 9 - Prob. 1EDCS
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- Why do E. coli and S. aureus have NOT shown endospores after staining?arrow_forwardWhy do cells need to be kept in the freezing devices first then transferred to liquid nitrogen storage in crypto preservation? In addition, why are antibiotics not used in the cell freezing media? Why FBS concentration higher than 10% (10% is the standard concentration in complete growth media) is recommended in cell freezing media?arrow_forwardWhy will a strict anaerobe grow in thioglycollate broth even when the medium is exposed to atmospheric oxygen?arrow_forward
- How is the presence or absence of viable endospores related to sterility?arrow_forwardWhy are the streak plates for microorganisms in coconut water incubated at 7°C?arrow_forwardWhy should the use of nichrome or iron containing loop/wire be avoided as an inoculating device when performing the oxidase test in microbiology lab?arrow_forward
- Why it is possible/ applicable to use recrystallization and vacuum filtration with Luminol? Cite some reasons.(Explain in at least 1 paragraph)arrow_forwardWhy is it important for the commercial canning process to destroy the endospores of Clostridium botulinum?arrow_forwardWhat concentration of agar is used in a semisolid medium for motility determination?arrow_forward
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