Homework Answers
10.
11. tabulated below
| PATHOGEN | IDENTIFICATION |
| Escherichia coli | rose to magenta colonies with dark pink centred colony |
| Enterococcus spp. | teal to torquoise colonies |
| Staphylococcus aureus | opaque,cream to white coloured colonies |
| Candida albicans | small, opaque,white moist colonies |
| Klebsiella | deep blue to dark indigo colonies |
| Pseudomonas spp. | colourless to light yellow-green colonies |
| Proteus vulgaris | blue-green colonies |
| Citrobacter spp. | dark blue colonies often with a rose halo in the surrounding media. |
12. Making a gram stain directly from the clinical specimen helps in narrowing down the range for the infection causing pathogens by differentiating among the gram negative and gram positive organisms.
gram positive- Actinimycetes, Clostridium, Mycoplasma etc
gram negative- E.coli, E.aerogens, Enterobactor, Campylobactor etc
Add Answer to:
10. Fill in the blanks in this diagram to make a key for these 3 bacteria:...
Short answer. Write your answer in the space provided. (1 point each) 14. How can a...
Short answer. Write your answer in the space provided. (1 point each) 14. How can a scientist distinguish Staphylococcus aureus from Staphylococcus epidermis on mannitol salu! agar (MSA)? 15. How can a scientist distinguish Enterobacter aerogenes from Escherichia coli on eosin methylene blue agar (EMB)?
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...
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...
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...
Scenario 1: A bacterium isolated from a wound sample gave the following results: MacConkey agar =...
Scenario 1: A bacterium isolated from a wound sample gave the following results: MacConkey agar = no growth Mannitol salt agar - good growth, color of medium unchanged Based on these results, which of the following statements is/are true? (Choose ALL true statements.) A. The organism is most likely Gram positive. B. The organism is most likely Gram negative. C. The organism is most likely a bacillus. D. The organism is most likely a coccus. Which of the following most...
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...
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...
With these results which bacteria can it be? Alcaligenes faecalis Enterobacter aerogenes Escherichia coli Proteus vulgaris Pseudomonas aeruginosa Serratia marcescens Gram Stain Results Organism Cell...
With these results which bacteria can it be?
Alcaligenes faecalis
Enterobacter aerogenes
Escherichia coli
Proteus vulgaris
Pseudomonas aeruginosa
Serratia marcescens
Gram Stain Results Organism Cell Shape Gram Stain Cell Arrangement Single Unknown sample Gram negative Rod Oxidase Results Color after Adding Reagent Organism Unknown sample Yellow, Negative SIM Results Motility Organismm Sulfur reductionn Indole production Unknown sample EMB Results Organismm Unknown sample Growth Colony Appearance Raised, Circular, Entired Purple, some colonies Glucose and Lactose Fermentation Glucose Lactose Organism Growth Color...
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...
Short answer. Write your answer in the space provided. (1 point each) 14. How can a scientist distinguish Staphylococcus aureus from Staphylococcus epidermis on mannitol salu! agar (MSA)? 15. How can a scientist distinguish Enterobacter aerogenes from Escherichia coli on eosin methylene blue agar (EMB)?
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...
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...
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...
Scenario 1: A bacterium isolated from a wound sample gave the following results: MacConkey agar = no growth Mannitol salt agar - good growth, color of medium unchanged Based on these results, which of the following statements is/are true? (Choose ALL true statements.) A. The organism is most likely Gram positive. B. The organism is most likely Gram negative. C. The organism is most likely a bacillus. D. The organism is most likely a coccus. Which of the following most...
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...
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...
With these results which bacteria can it be?
Alcaligenes faecalis
Enterobacter aerogenes
Escherichia coli
Proteus vulgaris
Pseudomonas aeruginosa
Serratia marcescens
Gram Stain Results Organism Cell Shape Gram Stain Cell Arrangement Single Unknown sample Gram negative Rod Oxidase Results Color after Adding Reagent Organism Unknown sample Yellow, Negative SIM Results Motility Organismm Sulfur reductionn Indole production Unknown sample EMB Results Organismm Unknown sample Growth Colony Appearance Raised, Circular, Entired Purple, some colonies Glucose and Lactose Fermentation Glucose Lactose Organism Growth Color...
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...
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