Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 27.1, Problem 2TQ
Summary Introduction
To review:
The bacteriostatic or bactericidal nature of a drug based on a test performed on the MIC (minimum inhibitory concentration) series.
Introduction:
Minimum inhibitory concentration is the lowest concentration of a drug that prevents visible growth of the bacteria. A bacteriostatic agent is a biological agent that inhibits the growth of the bacteria whereas a bactericidal agent is the one that kills the microscopic organisms. The broth is a liquid medium for the culture of bacteria that contains essential nutrients for the bacterial growth.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Explain how to perform a catalase test and what a positive result looks like
Can the results of an MIC test be used to determine whether an antibiotic is bactericidal or bacteriostatic? If not, set up an experimental procedure to determine whether the effect is bactericidal or bacteriostatic.
A culture of Staphylococcus is diluted as follows:(1) 20mL are added to 80mL of water.(2) 10uL from (1) are then added to 9.99mL of water.(3) A 10-2 dilution is made from tube # (2).(4) 100uL from (3) are plated for a pour plate and incubated.
There were 34 colonies counted on one quarter of the plate following incubation.
a) What was the overall dilution?b) How many cfu/mL were present in the original culture?
Chapter 27 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 27.1 - Prob. 1TQCh. 27.1 - Prob. 2TQCh. 27.1 - Prob. 3TQCh. 27.1 - Prob. 4TQCh. 27.2 - Prob. 1TQCh. 27.2 - Prob. 2TQCh. 27.2 - Prob. 3TQCh. 27.3 - Prob. 1TQCh. 27.3 - Prob. 2TQCh. 27.3 - Prob. 3TQ
Ch. 27.3 - Prob. 4TQCh. 27.4 - Prob. 1TQCh. 27 - Prob. 1RQCh. 27 - Prob. 2RQCh. 27 - Prob. 3RQCh. 27 - Prob. 4RQCh. 27 - Prob. 5RQCh. 27 - Prob. 6RQCh. 27 - Prob. 7RQCh. 27 - Prob. 8RQCh. 27 - Prob. 9RQCh. 27 - Prob. 10RQCh. 27 - Prob. 11RQCh. 27 - Prob. 12RQCh. 27 - Prob. 13RQCh. 27 - Prob. 14RQCh. 27 - Prob. 15RQCh. 27 - Prob. 16RQCh. 27 - Prob. 17RQCh. 27 - Prob. 1TQCh. 27 - Prob. 2TQCh. 27 - Prob. 3TQCh. 27 - Prob. 4TQ
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
- Please observe the following results: (Uploaded Picture). a) Please interpret and analyze the results. b) According to these results please provide the name of the specific bacteria and discuss which of these two test help you determine your answer.arrow_forwardDiscuss the medical application of the Benedict’s test? What other test(s) are used in parallel to Benedict’s test?arrow_forwardSuppose your professor handed you a test tube with 2.0 mL of M. foliorum infected with bacteriophage T4 in it and told you to make a 10-2 dilution of the entire culture. Explain how you would do this. Show your calculations.arrow_forward
- Compare and contrast bacteriocidal, bacteriostatic and bacteriolytic agents. What are their effects on the optical density (OD) and viable count of a bacterial culture, respectively?arrow_forwardduring inoculation, the bacterial culture tube is always held at an angle and the lid of the Petri dish is slightly open. Explain the purpose of these steps briefly.arrow_forwardThis test will differentiate between aromatic amino acids with an acitivated ring from other amino acids. a) Nihydrin Test b) Xanthoproteic Test C) solubility test d) polarimeter testarrow_forward
- A student inoculates Escherichia coli into two test tubes containing the same sterile liquid medium, except the first tube also contains a drop of a chemical disinfectant with an antimicrobial effect. After 24 hours of incubation, the first tube remains clear while the second tube becomes cloudy with bacteria. How would you go about determining if the chemical is bacteriostatic or bactericidal?arrow_forwardThe Kirby-Bauer test examines the effectiveness of antibiotics and disinfectants or antiseptics on separately plated bacteria. Which of the following Zones of Inhibition (ZOI) measurements on a plate of Klebsiella pneumoniae shows the strongest inhibition of the bacterium's growth? a) Penicillin, 7 mm ZOI b) Actinomycin, 9 mm ZOI c) Tetracycline, 26 mm ZOI d) Chloramphenicol 2 mm ZOI e) Streptomycin, 23 mm ZOIarrow_forwardWhat is the purpose of the confirmed test in an experiment designed to test for coliform bacteria?arrow_forward
- Between Proteus mirabilis and Proteus vulgaris which are positive or negative for ornithine decarboxylase test results?arrow_forwardWhen bacteria from a throat swab are streaked on blood agar, why is the agar stabbed several times with the loop?arrow_forwardThe following pictures show the results of a Disk Diffusion Assay for different types of bacteria. For each bacteria, what antibiotic would you recommend be used on the patient? Explain your choice.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Serology 101: Testing for IgG and IgM antibodies; Author: Beckman Coulter Dx;https://www.youtube.com/watch?v=LtqKB-qpJrs;License: Standard youtube license