Could blood agar be classified as a selective or differential medium? Explain.
PRE-LAB QUESTIONS
1. Could blood agar be classified as a selective or differential medium? Explain.
2. Describe, briefly, the three common types of hemolysis.
3. If multiple colonies are seen on your blood agar plate after the incubation and all of them exhibit a-hemolysis, are they all members of the same species? Why or why not?
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Could blood agar be classified as a selective or differential medium? Explain.
pver the questions first. Go over exercises 5-21. Answer the following questions 1. Is Blood agar...
pver the questions first. Go over exercises 5-21. Answer the following questions 1. Is Blood agar a selective media, differential media, and/or an enriched media? Hint: it is more than one of these, but it is not all three. Please explain your answer. 2. Define hemolysins. 3. List the three major types of hemolysis and briefly describe each.
Exercise 7: Selective and Differential Growth Medium and Tests 6. What is the difference between opaque,...
Exercise 7: Selective and Differential Growth Medium and Tests 6. What is the difference between opaque, translucent and transparent? opaque - colonie are not tamporent on trosoluent, they are impermiable to light Trarolucent colonies are almost clear but with a distanted mision Troroparent colonio are cled colonit without any detrotta 7. Why are growth characteristics more easily and readily analyzed on agar plates rather than agar slants? 8. Which has more utility in maintaining stock cultures agar dishes nutrient broth...
- 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...
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...
WORKSHEET Hemolytic activity Gram Stain Cell Arrangement Blood agar plates: Bacterial Species S. pyogenes E. faecalis...
WORKSHEET Hemolytic activity Gram Stain Cell Arrangement Blood agar plates: Bacterial Species S. pyogenes E. faecalis S. pneumoniae + + + QUESTIONS 1. List the disease caused by beta-hemolytic streptococci. 2. List the areas of the body where streptococci are indigenous. 3. What types of hemolysis occurred for each of the species of Streptococcus you tested? 4. What types of hemolysis occurred on the blood agar plate containing your throat culture 5. Were you able to identify the type of...
Background Ques part 1) Selective and differential media; EMB and Tsl agar bacill inhabit a wide...
Background
Ques part 1)
Selective and differential media; EMB and Tsl agar bacill inhabit a wide range of environments. Many are significant pathogens, such a coli, Salmonella, Shigella, but many compose our normal flora and inhabit soil and water. Many gra negative bacilli that inhabit our large intestine are called enterics. Enteric pathogens are the most frequent cause of diarrheal illnesses and have become significant contaminants spread through foo Some can also cause respiratory and urinary infections. Experiment 1: EMB...
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...
Lab Report-Carbohydrates 1. Purpose 2. Special Media for Isolating Bacteria (Lab #12) a. Why are dyes...
Lab Report-Carbohydrates 1. Purpose 2. Special Media for Isolating Bacteria (Lab #12) a. Why are dyes such as phenol red, eosin or methylene blue added to the media? b. How does the bacterium change the media (i.e color of agar or colonies) after incubation? C. In this experiment, which media are selective, and which are differential? d. How did the results observe on the mannitol salt agar and EMB agar correlate to the Gram reaction of the bacteria? e. What...
Multiple Choice. Highlight the single correct answer choice. 1. Streak plates are useful in microbiology to...
Multiple Choice. Highlight the single correct answer choice. 1. Streak plates are useful in microbiology to __________. quantify the number of bacteria measure turbidity identify bacteria determine cell shape 2. In the streak-plate technique, the intent is to isolate bacteria by dilution in theory by __________. dilution on a solid surface separating cells within the solid surface using a pipette dilution in water blanks 3. A pure culture consists of which of the following? one genus of microbe one species...
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...
pver the questions first. Go over exercises 5-21. Answer the following questions 1. Is Blood agar a selective media, differential media, and/or an enriched media? Hint: it is more than one of these, but it is not all three. Please explain your answer. 2. Define hemolysins. 3. List the three major types of hemolysis and briefly describe each.
Exercise 7: Selective and Differential Growth Medium and Tests 6. What is the difference between opaque, translucent and transparent? opaque - colonie are not tamporent on trosoluent, they are impermiable to light Trarolucent colonies are almost clear but with a distanted mision Troroparent colonio are cled colonit without any detrotta 7. Why are growth characteristics more easily and readily analyzed on agar plates rather than agar slants? 8. Which has more utility in maintaining stock cultures agar dishes nutrient broth...
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...
WORKSHEET Hemolytic activity Gram Stain Cell Arrangement Blood agar plates: Bacterial Species S. pyogenes E. faecalis S. pneumoniae + + + QUESTIONS 1. List the disease caused by beta-hemolytic streptococci. 2. List the areas of the body where streptococci are indigenous. 3. What types of hemolysis occurred for each of the species of Streptococcus you tested? 4. What types of hemolysis occurred on the blood agar plate containing your throat culture 5. Were you able to identify the type of...
Background
Ques part 1)
Selective and differential media; EMB and Tsl agar bacill inhabit a wide range of environments. Many are significant pathogens, such a coli, Salmonella, Shigella, but many compose our normal flora and inhabit soil and water. Many gra negative bacilli that inhabit our large intestine are called enterics. Enteric pathogens are the most frequent cause of diarrheal illnesses and have become significant contaminants spread through foo Some can also cause respiratory and urinary infections. Experiment 1: EMB...
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...
Lab Report-Carbohydrates 1. Purpose 2. Special Media for Isolating Bacteria (Lab #12) a. Why are dyes such as phenol red, eosin or methylene blue added to the media? b. How does the bacterium change the media (i.e color of agar or colonies) after incubation? C. In this experiment, which media are selective, and which are differential? d. How did the results observe on the mannitol salt agar and EMB agar correlate to the Gram reaction of the bacteria? e. What...
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...
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