Microbiology for Surgical Technologists
2nd Edition
ISBN: 9781337243209
Author: Margaret Rodriguez
Publisher: Cengage Learning US
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Chapter 3, Problem 4TBP
Summary Introduction
To describe: The reason why the determination of the antibiotic sensitivity of bacteria takes so long.
Introduction: Antibiotic sensitivity is the vulnerability or susceptibility of bacteria to antibiotics. Antibiotic susceptibility testing is often carried out in clinical practice. This technique is highly useful in the identification of disease-causing bacteria. For example, Staphylococcus saprophyticus.
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Describe control strains used in the clinical microbiology laboratory and explain their maintenance in the laboratory. ( write BY WORD and all steps I need).
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Discussion
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Questions 14-16 are based on the following.
In the 1940's, Avery, Macleod, and McCarty transformed nonencapsulated bacteria into
encapsulated. forms by growing the nonencapsulated cells in a culture containing an
extract made from dead encapsulated cells. The transformed cells produced colonies of
encapsulated bacteria. Three different procedures and their results are outlined below.
Procedure I:
Extract made from dead encapsulated cells added to culture medium.
Nonencapsulated bacteria added to culture medium.
Results: Both nonencapsulated and encapsulated bacteria grow.
Procedure II:
Extract made from dead encapsulated cells treated with protein-degrading enzymes before
adding extract to culture medium.
Nonencapsulated bacteria added to culture medium.
Results: Both nonencapsulated and encapsulated bacteria grow.
Procedure III:
Extract made from dead encapsulated cells treated with DNAse (an enzyme that selectively
destroys DNA) before adding extract to culture medium.…
Please match the test with its description to assess your understanding of the kinds of data collected during information gathering and
your understanding of the processes involved in identifying microbes from samples.
1. using macroscopic and microscopic traits for identification appearance
2. tests that determine chemical characteristics including enzyme production and nutritional requirements of the microbe
biochemical tests
3. analyzing the genotype of an organism DNA profiles
4. tests the organism against known antibodies to determine if there is a reaction between the organism and the antibody
immunologic testing v
Chapter 3 Solutions
Microbiology for Surgical Technologists
Ch. 3 - Prob. 1TBPCh. 3 - Prob. 2TBPCh. 3 - Prob. 3TBPCh. 3 - Prob. 4TBPCh. 3 - During a bronchoscopy, the surgeon retrieves a...Ch. 3 - During a bronchoscopy, the surgeon retrieves a...Ch. 3 - During a bronchoscopy, the surgeon retrieves a...Ch. 3 - During a bronchoscopy, the surgeon retrieves a...
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