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 2A
For each of the following bacteria, explain why it is often resistant to disinfectants.
- a. Mycobacterium
- b. Pseudomonas
- c. Bacillus
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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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- The Petri Dish method is used in microbiology to raise bacteria in: a) rapid growth b) pure culture c) septic environment d) all of the above 2. What is the difference between antiseptic and sanitization?3. In order to prevent any kind of contamination the medium must be _________ before placing it in the Petri dish. a) lyophilized b) pasteurized c) autoclaved d) distillearrow_forwardWhich of the following is true regarding pathogenic strains of Staphylococcus and Streptococcus, respectively? A) O Staphylococcus aureus is a common cause of sore throats. B) O Alpha-hemolytic Streptococci turn blood agar green and include members that cause pneumonia and tooth decay, C) Gamma-hemolytic Streptococci completely lyse red blood cells on blood agar. D) O The beta-hemolytic group of Streptococci does not contain any pathogenic types.arrow_forwardAll bacteria produce spores. a) Trueb) Falsearrow_forward
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- 9. The process in which all organisms and pathogens are destroyed is called ------. a) Disinfection b) Sterilization c) Antisepsis d) Pasteurizationarrow_forwardThe disc diffusion assay measuring a disinfectant's effectiveness against a microorganism is more standardized than measuring an antibiotic's effectiveness with the kirby-Bauer assay. a) True b) Falsearrow_forwardMatch the PAMP to the type of pathogen it is specific to. 1) Peptidoglycan 2) Lipopolysaccharides 3) RNA 4) DNA Here is the options: a) Gram-negative bacteria b) Viruses c) Gram-positive bacteriaarrow_forward
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