The zone of inhibition measurement for S. aureus with an antibiotic disc of erythromycin is 10. Looking at the chart below, would you say the bacteria is resistant, intermediate, or sensitive/susceptible to the antibiotic? Resistant Intermediate Susceptible Penicillin G (10ug) S28 229 --- Oxacillin (1µg) S10 11 -12 213 Erythromycin(15ug) S13 14-22 223 Gentamycin (10 ug) S12 13 -14 215 Tobramycin(10 pg) S12 13 -14 215 Intermediate Resistant O Sensitive/Susceptible
Q: Table C. Xanthoproteic Reaction Samples 1. Tryptophan 2. Tyrosine 3. Casein Observation
A: Since your question has multiple sub-parts, we will solve the first three sub-parts for you. If you…
Q: 1. Laboratory strains of Staphylococcus aureus (S. aureus is Gram +), Escherichia coli (E.coli is…
A: Antibiotics are the medicines which are used to cure infections which are caused by bacteria. These…
Q: The world is facing a Corona Virus (COVID-19) Pandemic and as a potential scientist and a…
A: The Alcohol has both the anti-microbial as well as anti-viral properties and hence used as the…
Q: Suppose you do this test on a hypothetical Staphylococcus species with the antibiotics pencilllin…
A: Disc diffusion test:- it is usually used in clinical studies to know the efficacy of Antibiotics. It…
Q: You are treating swimming pools with ozone. You are using 0.02 ppm ozone to kill adenovirus, with an…
A: Adenoviruses are a group of common viruses that infect the lining of your eyes, airways and lungs,…
Q: A patient presents with sepsis from an E.coli bacteremia (bacteria growing in bloodstream). E. coli…
A: Escherichia coli is a typical human and animal intestinal inhabitant, but can be found in water ,…
Q: Consider the photos here which demonstrate antibiotic sensitivities of Staphylococcus aureus strains…
A: Antibiotics are medications that are used to treat infections caused by microorganisms such as…
Q: Before development of a vaccine against this microbe, thedisease it caused accounted for two-thirds…
A: Meningitis is disease that causes inflammation of meninges. The meninges are the membrane that…
Q: A batch of raw milk was tested and found to contain a bacterial population of 4x I05 cfu/ml. It is…
A: Pasteurization is the control of microbial growth through moist heat and this process is done to…
Q: Identify the MISMATCH pair from the following, if any Group of answer choices some toxins ::::…
A: None of the above is a mismatch pair some toxins :::: helps bacteria scavenge iron from environment…
Q: If you have to prepare 4 nM solution of human IgG ( immunoglobuline) which has molecular mass of 150…
A: The number of moles of a solute present in one liter of the solution is called the molarity of that…
Q: You measure the zone of inhibition around the tetracycline disk as 14 mm. How would you report the…
A: Answer. Disk diffusion method It is a method used for the detection of susceptibility of various…
Q: Using the substrate Ac-Ser-Gln-Asn-Tyr*Pro-Val-Val-NH2 and 10 nM HIV-1 protease, an inhibitor showed…
A: Michaelis-Menten mechanism is a rate equation that is applicable for a single substrate enzyme…
Q: What does the zone of inhibition imply? Does the measurement of the zone of inhibition imply that…
A: Antibiotic Sensitivity Test ( AST) is a test used to detect best Antibiotic for eradication of…
Q: What is the difference between a Clinical Breakpoint and the Minimum Inhibitory Concentration (MIC)?…
A: Answer : Option C is correct :
Q: A/Texas/04/2009 WJ379 Oseltamivir carboxylate 1 μΜ No Drug 3 nM 1 μΜ 10 nM 30 nM 100 nM 300 nM 3 µM…
A: This is a plaque assay with human lung epithelial cell to compare the effectiveness of two drugs…
Q: Based on the figures given, 1. What range of time and temperature combinations poses the highest…
A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…
Q: The table below shows the response of our ESKAPE safe relatives to 4 bacteria isolated from a master…
A: Antibiotics are the chemical substances that inhibit the growth of microbes.
Q: This is a walk-through of Minimum Inhibitory Concentration, MIC: This tray has 8 rows, 4 for…
A: Minimum Inhibitory Concentration (MIC) assay is used to determine the minimum concentration of an…
Q: Which of the following bacteria can cause beta-hemolysis? group A streptococci S. pyogenes group B…
A: BETA HEMOLYSIS Beta hemolysis is defined by a clear zone of hemolysis under and around the colonies…
Q: The UWC Biotechnolo class undertook a study to determine the microbiological quality of mince-meat…
A: In-order to calculate the amount of bacteria present in a highly concentrated stock solution ( a…
Q: In stages of bacterial growth, this is the phase where the bacterium adjusts to the new environment…
A: There are many phases in the bacterial growth curve. These different phases together constitute…
Q: both left hand side is tetracycline and right hand side is ampicillin With reference to the table…
A: Here, two different inoculated plates with selected antibiotics are given. First plate is inoculated…
Q: Graph 3: The following data were collected during a drug trial testing antibiotics on methicillin-…
A: In vitro tests are used to determine antibiotic susceptibility in bacterial isolates. One method…
Q: TSA plates of microorganisms grown at 30°C or 37°C In words, describe the differences you see for…
A: Tryptic soy agar (TSA) contains pancreatic digests of casein and peptic digests of soybean meal,…
Q: Streptococcus pneumoniae occurs in two colony morphs: smooth and rough. Smooth colonies are virulent…
A: Streptococcus pneumoniae is defined as a Gram-positive bacteria that is responsible for the maximum…
Q: Question 10 What is a difference between the DTP vaccine and the DTAP vaccine? O The DTP vaccine…
A: Infections are caused when a foreign pathogenic organism infects the host and becomes hostile…
Q: After running a novobiocin sensitivity test, the zone of inhibition diameter measured 14 mm for one…
A: The microbiology studies about both the diseases causing microbes and beneficiary microbes, about…
Q: The following are the assumptions of the COVID-19 model EXCEPT transmission occurs during the…
A: Introduction The COVID-19 pandemic caused by the corona virus, which is believed to have been…
Q: Several cell culture lines of epithelial cells, called “Cell Line A, B, or C,” are incubated with…
A: Epithelial cells are present on the surfaces and line the inner surface of the body, such as the…
Q: In a nutrient medium that lacks histidine, a thin layer of agar containing ~109 Salmonella…
A: Ames Test:It is a biological assay that is used in assessing the mutagenic potential of the given…
Q: To determine the number of cells in a pure culture of Klebsiella pneumoniae, you have performed a…
A: Colony-forming units per millilitre (cfu/ml) of Klebsiella pneumonia original culture can be found…
Q: Calculate the concentration of bacteriophage in the original culture from the following data. Be…
A: Virus plaque assay is used to calculate the bacteriophage in a sample.
Q: If 5% w/v concentration of a bactericide of dilution coefficient of 3 takes 25 minutes to effect…
A: Ans: The effectiveness of the disinfectant can be asses by the dilution coefficient.
Q: How is “RFLP” technology used in the detection of “SNP” in sickle cell anemia? Please describe the…
A: RFLP is a technique used in molecular biology to detect differences in DNA sequences. The acronym…
Q: what is the effect of the antibiotic produced from S. erythraea on the strains S.aureus, B.subtilis…
A: " Since you have asked to answer the question along with the reference, but it is against our honor…
Q: In the SIR equation for Infectious hosts, why is the term "- vl" negative?
A: The SIR equation is a mathematical model to study epidemics. Consider the system below. S →β[S][I] I…
Q: Which of the following accurately reflects the information in this snip? When Staphylococcus…
A: Staphylococcus aureus is a gram positive round shaped bacteria and is found is found in the…
Q: Zone of inhibition for each antibiotic Trial 1 Trial 2 Trial 3 Average Sample A (mm) 22 21 21 21.3…
A: Disc diffusion method ( Kirby bauer method ) is a method for determining the sensitivity or…
Q: The following table includes information from a procedure where mice were injected with different…
A: The infective dose, or as we called it as the ID50, is the estimated number of organisms or virus…
Q: When using combination antibiotic therapy, it is important to administer drugs that work…
A: Antibiotic synergism It is the combination of antibiotics to enhance the activity in which two or…
Q: Propose a simple model of Covid 19 which describes the four forms of disease. 1) Subclinical form,…
A: COVID-19 is caused by the virus SARS-CoV-2. It is spread by contaminated secretions such as saliva…
Q: Based on the table, what can you conclude from the said data? Title: Indicate whether the…
A: Microbes, which are tiny and nearly invisible, have had a huge influence on society since the…
Q: Complete culture medium is made of Select one: a. DMEM, 10% fetal bovine serum and 1%…
A: Culture media Culture media are specific mixtures of nutrients and other substances that are…
Q: A patient admitted to the hospital for fever and coughing is diagnosed with an active tuberculosis…
A: Darwin observed a number of variations or differences among the organisms that lived on Galapagos…
Q: Caffeine and paracetamol have retention times of 11.80 and 13.25 min, respectively, on a 25.0-cm C18…
A: Column efficiency is usually indicated by the number of theoretical plates per column. This is…
Q: Streptococcus pneumoniae is a Gram-positive bacterium that colonizes the mucosal surface of the…
A: Gram-positive bacteria are the group of bacteria that stain purple and give positive results with…
Q: The growth of hybridoma cells, producing a monoclonal antibody, was monitored for 4 and a half days,…
A: Cell growth mimics first-order chemical reaction. the question provides us with cell growth data and…
Q: Write about Oxford–AstraZeneca COVID-19 vaccine (Covishield) You must include the following…
A: The current COVID-19 pandemic has urged the scientific community internationally to find answers in…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- You are working in a lab studying Streptococcus pyogenes as a cause of necrotizing fasciitiis. You have an overnight culture that you want to know the starting concentration of, so do a set of six 1:10 serial dilutions (putting 1 mL from the stock into a 9 mL blank), with tube #1 being 1:10, #2 is 1:100, etc. You plate 0.1 mL from tube 5 onto a blood agar plate and the next morning count 134 colonies. How many bacteria (measured in CFU/mL) were in the overnight culture flask? A. 1.34 x 10^4 CFU/mL B. 1.34 x 10^5 CFU/mL C. 1.34 x 10^6 CFU/mL D. 1.34 x 10^7 CFU/mL E. 1.34 x 10^8 CFU/mL F. cannot tell based on the data given - you'd need to know the volume of the original culture flaskboth left hand side is tetracycline and right hand side is ampicillin With reference to the table below, determine the antibiotic susceptibilities of different antibiotics against coli and S.aureus. Am=17mm Te=23mm E.coli Antimicrobial agent sensitive Intermediate resistant Interpretive categories and zone diameter breakpoints, nearest whole mm Ampicillin >17 14-16 <13 Tetracycline >15 12-14 <11diameter AM=47MM TE= 27 MM both left hand side is ampicillin and right hand side is tetracycline With reference to the table below, determine the antibiotic susceptibilities of different antibiotics against coli and S.aureus. S.aureus Antimicrobial agent Interpretive categories and zone diameter breakpoints, nearest whole mm sensitive Intermediate resistant Tetracycline >19 15-18 <14
- Based on our class results, which of the following should be effective when treating an E. faecalis infection? [Choose all that apply] Group of answer choices Kanamycin (K-30) Vancomycin (Va-30) Novobiocin (NB-30) Ciprofloxacin (CIP-5) Ampicillin (AM-10) Amoxicillin/Clavulanic acid (AmC-30) Bacitracin (B-10) Bacitracin (B-10) Trimethoprim/Sulfamethoxazole (SXT)This is a walk-through of Minimum Inhibitory Concentration, MIC: This tray has 8 rows, 4 for Staphylococcus aureus (SA) and 4 for Methicillin-Resistant S. aureus (MRSA). Each row has 12 compartments, or wells. The wells have different concentrations (ug/ml) of the antibiotic Oxacillin in them. From Left to Right, the concentration of Oxacillin is going down acillin concentration, pg/ml 64 32 16 8 4 2 1 0.5 0.25 0.13 0.06 0 SA dn The same amount of S. aureus broth culture is added to each well and the tray is incubated. A color change shows that S. aureus grew in a given well. MRSA What is the lowest concentration at which SA is inhibited (does not grow)? 64mg/ml What is the lowest concentration at which MRSA is inhibited? What is the MIC for Oxacillin vs SA? What is the MIC for Oxacillin vs MRSA? - Notes Comments 33°FA 65-year-old woman has a long-term central venous catheter for intravenous therapy. She develops fever and subsequently has multiple blood cultures positive for Staphylococcus epidermidis. All of the S. epidermidis isolates have the same colony morphology and antimicrobial susceptibility pattern, suggesting that they are the same strain. In what possible way do you think she has contracted the bacteria? Which link in the chain of infection has broken in this particular scenario and what will be your advice to avoid such infections?
- I AM TRYING TO IDENTIFY THIS UNKNOWN. IMAGE 1 HAS TWO PICTURE OF CATALASE TEST AND BLOOD AGAR TEST. I believe it is one of the following: 1) S. pyo. 2)S. agal . 3)S.pneu. 4)E. faecalis 5)S. aureus 6)S epi. 7)S. sapro. 8)M. luteus Please let me know which test will i need out of the table to justify your reason of picking up the unknown and also how that test justifies it? what characteristics of that test made you pick the unknown?Match the terminology correctly with the definition in the table below (eg A=1). TERMINOLOGY DEFINITION A. Aerosol 1. Disease caused by pathogen transfer B. Airborne infection 2. Process to kill or remove pathogenic microorganism (not spores) C. Asepsis 3. Organism capable of multiplication D. Decontamination 4. Process to kill/remove all microorganisms including spores and viruses E. Pathogen 5. Thick-walled resting cells formed by Gram+ organisms F. Infection 6. Organism able to cause disease in a host G. Disinfection 7. Suspension in air of finely dispersed solids or liquids H. Viable microorganisms 8. Caused by inhaling airborne material carrying microbial contaminants I. Sterilization 9. Prevention of microbial contamination J. Spores (bacterial) 10. Disinfection or sterilization of contaminated articlesA solution containing 500,000 units of polymyxin B sulfate in 10 mL of sterile water for injection is added to 250 mL of D5W to make a total volume of 260 mL. The infusion is to be administered over 2 hours. If the administration set delivers 10 drops/mL, at what rate, in drops per minute, should the infusion be given to ensure the patient receives the dose within the designated time interval?
- CHOOSE THE BEST ANSWER: 2. ALL are true about the activity of Macrolides EXCEPT: It is effective against syphilis infections it resembles that of penicillin it is very effective against G(-) bacteria it is effective against erysipelas infections 3. These are ALL causes of bacterial resistance against macrolides EXCEPT: active efflux bacterial endospores release of esterases modification of binding site 4. These are ALL adverse effects of Erythromycin EXCEPT: CYP450 inhibition Hepatotoxicity Neutropenia Acute cholestatic hepatitis 5. These are drugs that have prolonged half-life when taken with erythromycin EXCEPT: Rifampicin Lipitor Lanoxin LasixMany antibiotics used in modern medicine are compounds made by fungi that inhibit bacterial protein synthesis. Describe the specific effect of the following antimicrobial drugs: (i) Chloramphenicol (ii) RifamycinSemi-synthetic and extended-spectrum penicillins have proven more effective than natural penicillins for two of the following reasons: 1-Interfere more effectively with the development of the peptidoglycan layer in cell-walls 2-Are less sensitive to penicillinases than natural penicillins 3-Do not contain the b-lactam ring thus making them less susceptible to b-lactamases 4-Are less susceptible to the development of resistance 5-Have a broader spectrum of activity