Homework Answers
14. Mannitol salt agar contains mannitol and the indicator phenol red. Staphylococcus aureus produce yellow colonies with yellow zones, whereas Staphylococcus epidermis produce red colonies with no colour change in the medium. Staphylococcus aureus can ferment mannitol, an acidic byproduct is formed which causes the colour change of phenol red in the agar.
15. Eosin methylene blue agar contains glucose which is metabolized by both Enterobacter aerogenes and Escherichia coli but the byproducts produced are different. In E. coli, the byproduct of glucose metabolism reacts with the basic dyes in the medium, producing a green metallic sheen. Enterobacter produce normal colonies.
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Short answer. Write your answer in the space provided. (1 point each) 14. How can a...
help please On a mannitol-salt agar plate, a bacterium grows on the plate, and turns medium...
help please
On a mannitol-salt agar plate, a bacterium grows on the plate, and turns medium color from light orange to bright yellow. The color indicator is phenol red. This bacterium must be capable of: Select one: O a. Fermenting lactose to make acidic by-products. O b. Utilizing citrate as a main carbohydrate source to grow. O c. Fermenting glucose to make acidic products, which lowers the pH of the MSA agar. O d. Fermenting mannitol to make acidic products,...
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...
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...
10. Fill in the blanks in this diagram to make a key for these 3 bacteria:...
10. Fill in the blanks in this diagram to make a key for these 3 bacteria: Escherichia coli, Enterobacter aerogenes and Staphylococcus aurvens. Growth on EMB No es Metallic green colonies Thick mucoid pink colonies Growth on Mannitol Salt Agar Genus: Gram stain: Genus: Gram stain: Yes with yellow zone around growth Genus: Gram stain: 11. How can one distinguish the 3 common urinary tract pathogens on the HardyCHROMTM UTI demo plate? 12. What is the value of making a...
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...
please make a gram-stain dichotomous key out of the following 9 bacteria and 7 lab regiments...
please make a gram-stain dichotomous key out of the following 9
bacteria and 7 lab regiments
Gram-stain, MSA,Glucose,Lactose, SIM, Uresua, Citraute
AutoSalon B Completed characteristics chart: - Last Modified: 7m ego Search Nataly Silva File 1 с Home Insert Draw Design Layout References UHONG X P Arial 12 A A A E BIU - * *, * A2A Format Painter Clipboard LU - X se conzcents 2 Editor Mailings Review View Helu MRWY L AalbCod AaBbcd AaBbcc Aabbccc AaB 33...
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...
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...
Short answer. Write your answer in the space provided. (1 point each) 6. Order the steps...
Short answer. Write your answer in the space provided. (1 point each) 6. Order the steps for the preparation of growing bacterial cells on solid agar plate. . place the cells in the cold for short-term storage measure the ingredients and prepare the nutrient agar in a heat-resistant glassware pour the agar into a Petri dish and let it solidify autoclave at 121 °C for 15 psi the agar for 15 minutes transfer the bacterial cells to the agar in...
I need help creating a flowchart on a unknown 89 Chart of Unknown Test and the...
I need help creating a flowchart on a unknown 89 Chart of Unknown Test and the Result #89 Name of Test What does it test? Positive result appears as: negative results appears as: Unknown #89 result: Gram Stain Reaction Cell envelope morphology Violet-blue Red Negative (pink) Cell morphology (shape: coccus, bacillus, or spirillum) Cell shape Bacillus (Rod shaped) Cell Arrangement Cell size or length Single Bacillus Pigment Cell envelope morphology Pink Oxygen Requirement If cell needs oxygen for respiration Growth...
help please
On a mannitol-salt agar plate, a bacterium grows on the plate, and turns medium color from light orange to bright yellow. The color indicator is phenol red. This bacterium must be capable of: Select one: O a. Fermenting lactose to make acidic by-products. O b. Utilizing citrate as a main carbohydrate source to grow. O c. Fermenting glucose to make acidic products, which lowers the pH of the MSA agar. O d. Fermenting mannitol to make acidic products,...
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...
10. Fill in the blanks in this diagram to make a key for these 3 bacteria: Escherichia coli, Enterobacter aerogenes and Staphylococcus aurvens. Growth on EMB No es Metallic green colonies Thick mucoid pink colonies Growth on Mannitol Salt Agar Genus: Gram stain: Genus: Gram stain: Yes with yellow zone around growth Genus: Gram stain: 11. How can one distinguish the 3 common urinary tract pathogens on the HardyCHROMTM UTI demo plate? 12. What is the value of making a...
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...
please make a gram-stain dichotomous key out of the following 9
bacteria and 7 lab regiments
Gram-stain, MSA,Glucose,Lactose, SIM, Uresua, Citraute
AutoSalon B Completed characteristics chart: - Last Modified: 7m ego Search Nataly Silva File 1 с Home Insert Draw Design Layout References UHONG X P Arial 12 A A A E BIU - * *, * A2A Format Painter Clipboard LU - X se conzcents 2 Editor Mailings Review View Helu MRWY L AalbCod AaBbcd AaBbcc Aabbccc AaB 33...
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...
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...
Short answer. Write your answer in the space provided. (1 point each) 6. Order the steps for the preparation of growing bacterial cells on solid agar plate. . place the cells in the cold for short-term storage measure the ingredients and prepare the nutrient agar in a heat-resistant glassware pour the agar into a Petri dish and let it solidify autoclave at 121 °C for 15 psi the agar for 15 minutes transfer the bacterial cells to the agar in...
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