Homework Answers
Answere : the anwere 1 is correct.
A selective medium is a medium where certain species are inhibited from growing on the plate by a constituent of the medium.
These media contain antimicrobials, dyes or alcohols to inhibit the growth of the micro-organisms.
Examples are - Eiosin methylene blue(EMB) agar, Mannitol salt agar, MacConkey agar, Phenylethyl alcohol(PEA) agar etc.
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What is a selective medium? O a medium where certain species are inhibited from growing on...
- Describe a circumstance (e.g. in its’ natural environment) where Staphylococcus species bacteria might benefit from...
- Describe a circumstance (e.g. in its’ natural environment) where Staphylococcus species bacteria might benefit from being salt tolerant. - How might the ability to perform hemolysis benefit a hemolytic organism in its’ natural environment? - Imagine that you have a culture containing a single bacterial species. This culture may be one of several possible species. Describe a scenario where you use Mannitol Salt agar, Blood Agar, and EMB plates to identify the unknown bacterial species. That is, how would...
What is the primary purpose of selective media? O Growing large concentrations of bacteria O Visualizing...
What is the primary purpose of selective media? O Growing large concentrations of bacteria O Visualizing the diversity of a mixed sample Isolation of bacteria from a mixed sample Growing fastidious bacteria.
1. Human microbiota. What type of bacteria species are likely to be cultured from your throat...
1. Human microbiota. What type of bacteria species are likely to be cultured from your throat swabs on Blood agar? Why? 2. What is the purpose of the candle jar for the cultivation of the Blood Agar plate/throat swabs and what type of metabolism do you think you are targeting? 3.With reference to your two nasal swabs, what is the difference between the two culturing strategies: culture this swab on a mannitol-salt-agar plate and inoculate the nutrient broth containing 7.5%...
can somrone help me write an introduction for each agar. thank you ? Introduction: Selective and...
can somrone help me write an introduction for each agar. thank you
?
Introduction: Selective and differential media are used frequently in Microbiology Pathology Labs to identify a known group of bacteria from a complex mix of other bacteria. The medium is designed to select against as many of the background organisms as possible by using a medium in which they will not grow but the organisms under investigation can grow hence the "Selective" part of the name. Any assayable...
An exponentially growing culture has a specific growth rate constant, K = 2.4 day-1. What is...
An exponentially growing culture has a specific growth rate constant, K = 2.4 day-1. What is the generation time? A test tube of fresh medium is inoculated with initial cell population of 6 x 105 cells/mL. Assuming no lag time, how long will it take for the culture to reach 8 x 109 cells/mL.
Prelab 9: Selective Media Read pages 227-230 and 241-256 in your lab manual, watch the video,...
Prelab 9: Selective Media Read pages 227-230 and 241-256 in your lab manual, watch the video, and answer the following questions in your own words before coming to lab. Chapter 6 in your textbook may also be helpful. You may also want to review the video on inoculation techniques. (I will hand out a written procedure for the KOH test in lab.) NOTE: for all these procedures over the next few weeks, you will be testing only your assigned organism...
You are given a mixed culture of two organisms in a small tube of TSB.
You are given a mixed culture of two organisms in a small tube of TSB. These two organisms include a Gram-negative strain (your bacterial strain to identify) and a Gram-positive strain (a contaminant). Your first task is to isolate these organisms which will help you identify which Gram-negative strain you are working with. 1) You inoculate two streak plates on TSA media and MacConkey Agar using aseptic technique. For each medium, state whether the medium is selective, differential, or neither and...
Q14. In the lab info it says that as a rule, most microbes can adjust to...
Q14. In the lab info it says that as a rule, most microbes can adjust to a range of salt concentrations. 7/29/2019 Which cell structure allows microbes to physically withstand hypotonic environments? Cell wall MSA has two properties. It is both selective and differential. When bacteria grow on this media, there is a visible difference between bacteria that ferment mannitol, and the bacteria that do not See Figure 2 (a)-effects of selective/differential media. Q15. Which of the following is correct...
microbiology help TOT Zoo Add Page Insert Table Chart Text Shape Media Comment These questions will...
microbiology help
TOT Zoo Add Page Insert Table Chart Text Shape Media Comment These questions will serve in lieu of a lab report for Exercise 15, 16, and 17 You will find the answer to these questions in the background, procedure, results and interpretation sections of manual Exercise 15, 16, and 17, videos, Actions of Selective and Differential Media Chart, and the Principle/Theory article in homework section.) General Questions 1. What is the purpose (function) of selective media? (How does...
A community... Ohas distinguishing physical and chemicall features Orepresents all species living in a habitat O...
A community... Ohas distinguishing physical and chemicall features Orepresents all species living in a habitat O is where individuals of a single species normally live Oall of the above Question 7 Another name for opportunistic colonizers of new or newly vacated habitats with high dispersal rates, that grow quickly, reproduce many offspring, and are seen first in primary succession are called Question 8 1p Both and are used for biological controls. 'A'spends all or part of its life living in...
What is the primary purpose of selective media? O Growing large concentrations of bacteria O Visualizing the diversity of a mixed sample Isolation of bacteria from a mixed sample Growing fastidious bacteria.
can somrone help me write an introduction for each agar. thank you
?
Introduction: Selective and differential media are used frequently in Microbiology Pathology Labs to identify a known group of bacteria from a complex mix of other bacteria. The medium is designed to select against as many of the background organisms as possible by using a medium in which they will not grow but the organisms under investigation can grow hence the "Selective" part of the name. Any assayable...
Q14. In the lab info it says that as a rule, most microbes can adjust to a range of salt concentrations. 7/29/2019 Which cell structure allows microbes to physically withstand hypotonic environments? Cell wall MSA has two properties. It is both selective and differential. When bacteria grow on this media, there is a visible difference between bacteria that ferment mannitol, and the bacteria that do not See Figure 2 (a)-effects of selective/differential media. Q15. Which of the following is correct...
microbiology help
TOT Zoo Add Page Insert Table Chart Text Shape Media Comment These questions will serve in lieu of a lab report for Exercise 15, 16, and 17 You will find the answer to these questions in the background, procedure, results and interpretation sections of manual Exercise 15, 16, and 17, videos, Actions of Selective and Differential Media Chart, and the Principle/Theory article in homework section.) General Questions 1. What is the purpose (function) of selective media? (How does...
A community... Ohas distinguishing physical and chemicall features Orepresents all species living in a habitat O is where individuals of a single species normally live Oall of the above Question 7 Another name for opportunistic colonizers of new or newly vacated habitats with high dispersal rates, that grow quickly, reproduce many offspring, and are seen first in primary succession are called Question 8 1p Both and are used for biological controls. 'A'spends all or part of its life living in...
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