Microbiology: An Introduction Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition) (What's New in Microbiology)
13th Edition
ISBN: 9780134688640
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 7, Problem 6MCQ
The data were obtained from a use-dilution test comparing four disinfectants against Salmonella choleraesuis. G = growth, NG = no growth
6. Which disinfectant is the most effective?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which disinfectant is the most effective? and why?
Which disinfectant(s) is (are) bactericidal? and why?
Z-germicSide is an antimicrobial agent. Based on the given data set below, describe how effective Z-germicSide is as a disinfectant.
Name of disinfectant
Z-germicSide
Phenol
KEY: No growth, += Growth
Dilution
1:100
1:125
1:150
1:175
1:200
1:95
1:100
1:105
1:110
1:115
Growth after 5 mins
+
+
+
+
+
+
Growth after 10
minutes
+
+
Growth after 15
mins
+
+
I'm looking for the mode of action only.
Chapter 7 Solutions
Microbiology: An Introduction Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition) (What's New in Microbiology)
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
Additional Science Textbook Solutions
Find more solutions based on key concepts
Some people compare DNA to a blueprint stored in the office of a construction company. Explain how this analogy...
Biology: Concepts and Investigations
Identify each of the following reproductive barriers as prezygotic or postzygotic. a. One lilac species lives o...
Campbell Essential Biology with Physiology (5th Edition)
The term ‘spore’.
Biology Science Notebook
Some people consider Pasteur or Koch to be the Father of Microbiology, rather than Leeuwenhoek. Why might they ...
Microbiology with Diseases by Body System (5th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Examine the given sets of table below. Which disinfectant is the MOST recommended? Support and Justify your answer. Table 2. Phenol Coefficient of Test Disinfectant Name of disinfectant Growth after 5 minutes Dettol Phenol Name of disinfectant Z-germicSide Phenol Name of disinfectant Jik Phenol KEY:- = No growth, + = Growth Dilution 1:100 1:125 1:150 1:175 1:200 1:95 1:100 1:105 1:110 1:115 Dilution 1:100 1:125 1:150 1:175 1:200 1:95 1:100 1:105 1:110 1:115 Dilution 1:100 1:125 1:150 1:175 1:200 1:95 1:100 1:105 1:110 1:115 + + + + + + + + Growth after 5 mins + + + + + + + Growth after 5 mins + + + + + + Growth after 10 minutes + + + + + Growth after 10 minutes + + + + + Growth after 10 mins + - + + + + + + Growth after 15 minutes + + + + + + Growth after 15 mins - + + + + + Growth after 15 mins + + + + - + + + +arrow_forwardAnswer the following questions briefly and concisely 1.How do bacteria in a chemostat and those in a batch culture vary from one another? 2. What happens in a chemostat if the dilution rate is higher than the organism's maximum specific growth rate? 3.Does a chemostat require the use of pure cultures? 4. Why would a complicated culture media for Leuconostoc mesenteroides be simpler to make than one with a fixed chemical composition?arrow_forward1 H 2 176 old culture Smear too BOTERC Losk like? + b. Failure to apply the decolorizer. + ne c. Failure to apply the safranin. Determine whether bacteria are motle or non-motle by looking at the growth in semi-solid medium What is the concentration of agar in (a) typical solid medium (b) semi sold motility medium? Arawer Q1 on Page 357. 7. Orygen Requirement: + d. Reversal of crystal violet and safranin stains. A questions 1.2 and 3 o Pg 83-84 Refer to the power point Questions 1 Predict the effect of the following "mistakes" made when performing a Gram stain. Your answer needs to address the predicted effect on both Gram-positive and Gram-negative cells. Consider each mistake independently. a. Failure to add the iodine. 414 gait to fer. 2 Both crystal violet and safranin are basic stains and may be used to do simple stains on Gram-positive and Gram-negative cells. This being the case, explain how they stain different cell types in the Gram stain. why? a cell wall. patem in…arrow_forward
- A 1.5-year-old child developed vomiting, diarrhea, and fever. Stool sample were inoculated into the Endo media. After 18 hours on the surface of the medium grew medium-sized, round, slightly convex red colonies with a metallic luster. The doctor suspected Escherichia coli. 1. Name the composition of the Endo agar media. 2. Describe the properties of bacterial colonies on the Endo media. 3. What purpose differential diagnostic Endo media used for?arrow_forwardBackground: The following results were obtained from a broth dilution test for microbial susceptibility. What is the minimum bactericidal concentration of this antibiotic and explain what you based your answer on?arrow_forwardCreate a flow chart to perform the required tests to identify unknown microorganism: - Use at least 3 other biochemical tests from the following list: Mannitol salt agar, Blood agar, Starch agar, Tributyrin Agar, Gelatin, Casein agar, Indole Production, MR-VP, Citrate, Hydrogen Sulfide test, Urease test, Nitrate reduction test, Catalase test, and Oxidase test. The Gram positive organisms that could be present in your unknown mixture are: Bacillus cereus, Micrococcus luteus, Staphylococcus aureus, Staphylococcus epidermidis and Lactococcus lactis.arrow_forward
- discuss the clinical significance, principles, reagents (if any) and positive and negative results of the following laboratory tests for Gram positive cocci organisms: Bile esculin test 5% salt turbidity or tolerance test PYRase test Pyruvate broth testarrow_forwardList with details 10 unique characteristics of MRSA .arrow_forwardSterilization/Disinfection by Chemicalarrow_forward
- If an organism that showed no growth in the MIC broth test at a particular dose, then grows in an MBC test when plated to media, the concentration of the drug was bacteriostatic. O 1) True O 2) Falsearrow_forwardWhat is the EFFECT and RATIONAL of Molten agar mixed with bacterial suspension has temperature higher than 45 oC.arrow_forwardThe number of bacteria in saliva samples was determined by collecting the saliva, making serial dilutions, and inoculating nutrient agar by the pour plate method. The plates were inoculated aerobically for 48 hours at 37°C. What can you conclude from this data? Why? Mouthwash CFU per ml in salvia Before Use After Use Listerine 2.22 x 107 1.22x107 Schmidts Mouthwash 2.42 x 107 3.22x105 Biotene Mouthwash 3.21 x 107 2.12 x106arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Infection Prevention and Control; Author: thecityoftoronto;https://www.youtube.com/watch?v=jx9sRYmBW3Q;License: Standard Youtube License