EBK MICROBIOLOGY
12th Edition
ISBN: 8220100659720
Author: CASE
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 7, Problem 7MCQ
The data were obtained from a use-dilution test comparing four disinfectants against Salmonella choleraesuis. G = growth, NG = no growth
7. Which disinfectant(s) is (are) bactericidal?
- a. A, B, C, and D
- b. A, C, and D
- c. A only
- d. B only
- e. none of the above
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The use of sodium chlorite to
inhibit the growth of Shigella in
drinking water refers to
?
O A. Sterilization
OB. Antisepsis
O C. Disinfection
D. all of the above [a, b & c]
E. a & c
MacConkey (MAC) Agar is used to isolate gram-negative enteric bacteria.Peptone provides nutrients necessary for growth.Bile salts and crystal violet inhibit the growth of gram positive bacteria.Lactose is a sugar. When metabolized, colonies turn the medium pink.Agar is a solidifying agent.Which component/s make the MAC agar selective?
a. Lactose
b. Peptone
c. Agar
d. Bile salts & Crystal Violet
The culture medium that contains penicillin is a type of ________media.
A. Complex
B. Reducing
C. Differential
D. Selective
E. Chemically defined
Chapter 7 Solutions
EBK 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
__________type of respiration that uses molecules other than O2 as final electron acceptors
Study Guide for Campbell Biology
What type of culture medium would increase the size of a bacterial capsule?
Laboratory Experiments in Microbiology (11th Edition)
Biogeochemical cycling involves three primary steps: __________, __________, and ______.
Microbiology with Diseases by Taxonomy (5th Edition)
Organisms with the genotypes AABbCcDd and AaBbCcDd are crossed. What are the expected propor-tions of the follo...
Genetic Analysis: An Integrated Approach (3rd 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
- Many antibacterial hand soaps contain the chemical agent _____ , which belongs to the _____ antimicrobial category. a. sodium hypochlorite; halogen b. triclosan; phenolic c. sodium chlorite; halogen d. ethanol; alcoholarrow_forward1. Illustrate in a diagram the identification scheme from gram-positive cocci.2. Discuss the principle involved in the biochemical tests in identifying species of staphylococci.3. Illustrate in a diagram the identification scheme for Streptococci.4. Discuss the principle involved in the biochemical tests in identifying species of Streptococci.arrow_forward25. A positive bile esculin test results in the formation of a a. Black; Group D streptococci b. Pink; Staphylococcus aureus c. Black; H₂S production d. Clear; Group D streptococci Bromthymol Blue Part B: Short Answer 26. We have used several pH indicators in this class. Correctly fill out the table below with what color each of the pH indicators will turn. (6pts) pH indicator Acidic conditions Phenol Red Methyl Red yom AAH antigen binding site. color and identifies Y Alkaline (basic conditions 27. Label the picture below with the antigen binding site, Fc region, and Fab region (note: you only have to label one of each) (3pts) dowala Fbregion fe region Jarrow_forward
- MacConkey Agar is considered as: a. Differential CM only b. Enriched CM only c. Selective CM only d. Selective and differential CMarrow_forwardulase d. Summerase Will also be positive for 13. Which of the following sugars are NOT used in TSI media? a. Fructose b. Sucrose c. Dextrose d. Lactose 14. An organism which is positive for the CAMP test must be a(n) a. Group A Streptococci b. Staphylococci c. Group B Streptococci d. Enterococci ben ben lyttem 15. The indole test is done to see if a microorganism can hydrolyze a. Urea b. Tryptophan c. Starch d. Lipids to eradiem vhinebi dan di beau al la >2 19rito yns noril relast wobiseid setu ovisis BUO 6. You inoculate an unknown Streptococcal species into 6.5% sodiu and it grows! This means you must havearrow_forwardAlpe Describe the tests used to identify Strep, and use a dichotomous key to successfully identify an unknown (what to look for in each) a. Hemolysis b. Optochin sensitivity c. Bacitracin sensitivity d. Growth in high salt environmentarrow_forward
- 1. The technique used in bacteria for endospore staining can also be used to observe fungal spores. Select one: True False 2. Which of the following statements is/are TRUE? a. Agar does not provide nutrients to microorganisms. b. Peptone, pork extracts, and yeast extracts provide nutrients to microbes. c. Tap water must be used for preparing culture media. d. A & B are correct. e. B & C are correct Clear my choice 3. Motility of microorganisms is BEST observed with a a. Flagellar stain b. Hanging drop preparation c. Solid medium d. Negative stain e. Streak plate Clear my choicearrow_forwardThe mechanical removal of microbes from a limited area of living tissue is referred to as -- a. None of the above b. disinfection c. pasteurization d. antisepsis e. sterilizationarrow_forwardBlood agar contains intact sheep red blood cells which are used to determine if a microbe has the ability to lyse these cells. This agar is properly termed A. a selective differential medium B. a complex medium C. a differential medium and a complex medium D. a selective mediumarrow_forward
- The following methods used for sterilizing an antibiotic solution. i. Dry heat sterilization ii. Microfiltration iii. Autoclaving iv. Desiccation Select one: O a. i and ii O b. i and iii O c. ii and iv O d. ii onlyarrow_forwardWhich one of the following methods of antimicrobial susceptibility testing requires a dilution series of the antibiotic and can provide a minimum inhibitory concentration? Select one: a. Disk diffusion method b. Broth microdilution method c. Agar macrodilution method d. Gradient diffusion methodarrow_forward1. Which of the following is NOT true of spread plating method? A. the maximum inoculum allowed is 1.0 ml B. spreading of the inoculum is done using a disinfected glass L-rod C. A pre-solidified medium is required prior to inoculation of the sample. D. A and B 2. Plates inoculated with bacteria are inverted during incubation to: A. prevent contamination B. limit the colony growth C. A and B D. A and C E. All of the above F. None of the abovearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning