Complete the table below with the observations: include amount of growth (-, +, ++, +, ++), colonial morphology for NA, color of colonies for EMB, and media color for MSA. Organism/ Media Nutrient Agar (NA) Eosin Methylene Blue (EMB) Agar Mannitol Salt Agar (MSA) Escherichia coli Pseudomonas aeruginosa Staphylococcus epidermidis Staphylococcus aureus

Complete the table below with the observations: include amount of growth (-, +, ++, +, ++), colonial morphology for NA, color of colonies for EMB, and media color for MSA. Organism/ Media Nutrient Agar (NA) Eosin Methylene Blue (EMB) Agar Mannitol Salt Agar (MSA) Escherichia coli Pseudomonas aeruginosa Staphylococcus epidermidis Staphylococcus aureus

Curren'S Math For Meds: Dosages & Sol

11th Edition

ISBN:9781305143531

Author:CURREN

Publisher:CURREN

Chapter9: Parenteral Medication Labels And Dosage Calculation

Section: Chapter Questions

Problem 1.1P

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The students of a Microbiology class were tasked to transfer or subculture a pure culture of Escherichia coli bacterium in five 7 mL nutrient broth and five petri dishes of nutrient agar with 20 mL capacity each. Based on the instruction bottles for nutrient broth and nutrient agar, preparation of the culture media is as follows. Nutrient broth: 8 g/liter Nutrient agar: 28 g/liter Answer the following: a. What is the weight in grams of nutrient broth? b. What is the weight in grams of nutrient agar? c. What is the distilled water in mL for nutrient broth? d. What is the distilled water in mL for nutrient agar?
Given the scenario, compute for the total volume of the culture media solution (milliliter or liter) and dehydrated media (grams). Scenario: The students of a Microbiology class were tasked to transfer or subculture a pure culture of Escherichia coli bacterium in five 7 mL nutrient broth and five petri dishes of nutrient agar with 20 mL capacity each. Based on the instruction bottles for nutrient broth and nutrient agar, preparation of the culture media is as follows. Nutrient broth: 8 g/liter Nutrient agar: 28 g/liter Formula: C1V1 = C2V2 *Concentration *Volume Computation: What are the answers to the following. Weight in grams of nutrient broth: _________ Distilled water in mL for nutrient broth: __________ Weight in grams of nutrient agar __________ Distilled water in mL for nutrient agar: ____________
answer the following questions with book reference. 1. What is meant by a bacterial “colony” or colony-forming unit? 2. Why are colonies that develop on a heavily seeded plate smaller than those that appear on a sparely seeded plate? 3. What are some of the uses and advantages of the ff.:a. Agar plateb. Agar slantc. Broth culture 4. What are the advantages and limitations of studying bacteria by means of the Culture method? 5. Why is it desirable that most cultures be inspected after 15 to 18 hours of incubation? 6. Why should culture media after inoculation be incubated at an optimal temperature immediately? 7. Describe other types of aerobic jars and anaerobic methods.
Draw the Dichotomous key for only the following species: Bacillus subtilis, Bacillus Megaterium, Bacillus cereus, Micrococcus.Luteus, E.coli, Serratia Marcescens, Enterobacter aerogenes Based on their colony morphology. Hint: Start the key from the results of gram staining, catalase test, Nitrate reduction test, Bile insulin, spore staining test, lactose, sucrose and glucose fermentation test for their accurate identification.
How would you identify this unknown bacteria using a flowchart and the bacteria below as a possible unknown? Bacillus cereus, Micrococcus luteus, Staphylococcus aureus, Staphylococcus epidermidis and Lactococcus lactis. Create flow chart (dichotomues) using at least 3 other biochemical tests from the following list: Mannitol salt agar, Blood agar, Starch agar, Tributyrin Agar, Gelatin, Casein agar, Indole Production, MR-VP, Citrate, Hydrogen Sulfide test, Urease test, Nitrate reduction test, Catalase test, and Oxidase test.
Microscopic count is used to estimate microbial load of a sample by counting colonies present on the plate. A count of more than 300 colonies on the plate may include overlapping colonies resulting in inaccurate count. a. First statement is TRUE, Second statement is FALSE. b. First statement is FALSE, Second statement is TRUE. c. Both statements are TRUE. d. Both statements are FALSE.
Is the Triple-Sugar Iron Agar (TSIA) a complex or defined medium? Explain based on its composition. Is the test tube a A) broth, B) slant, or C) deep agar medium? Why is a “needle” used to inoculate?
Describe characteristics of Streptococcus Agalactiae in the Agar: (How does colonies look like (color) and explain does it grow on that agar. Blood Agar (Aerobic) MacConkey EMB PEA Mannitol Salt Agar Chocolate Agar Nutient Agar
Which isolation technique is best used in isolating microorganisms (in countable good plates) from a gram of soil sample with expectedly high microbial count? A. Streak Plate technique B. Serial Dilution-Pour Plate technique C. Spread Plate technique D. Hanging Drop technique 2. Which materials are needed in isolating bacteria using Streak Plate technique? Check all that apply. ( )nutrient agar plate ( ) inoculating loop ( ) microbial inoculum ( ) flame source 3. Which term refers to that solution of sterile distilled water/normal saline/peptone water used to "thin out" dense microbial populations in Serial Dilution-Pour Plate technique used in the isolation of microorganisms? A. inoculum B. culture medium C. diluent D. microbial culture
what is the physical characteristics of this streak plate? Look at a single colony on a streak plate and look for special physical characteristics such as: motility, possible presence of endospores and/or capsule, culture color?
The 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 ZOI
Create a flow chart to perform the required tests to identify unknown microorganism: - Use at least 3 other biochemical tests from the following list: Mannitol salt agar, Blood agar, Starch agar, Tributyrin Agar, Gelatin, Casein agar, Indole Production, MR-VP, Citrate, Hydrogen Sulfide test, Urease test, Nitrate reduction test, Catalase test, and Oxidase test. The Gram positive organisms that could be present in your unknown mixture are: Bacillus cereus, Micrococcus luteus, Staphylococcus aureus, Staphylococcus epidermidis and Lactococcus lactis.

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Organism/ Media	Nutrient Agar (NA)	Eosin Methylene Blue (EMB) Agar	Mannitol Salt Agar (MSA)
Escherichia coli
Pseudomonas aeruginosa
Staphylococcus epidermidis
Staphylococcus aureus
Unknown 9 mixture