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- 5) True or False Biofilms protect bacteria from antibiotics due to reduced diffusion of the drug.10. Which one of the following methods of antimicrobial susceptibility testing combines some of the properties of two other methods and involves adding a plastic strip to the agar? a. Gradient diffusion method b. Agar macrodilution method c. Disk diffusion method d. Broth microdilution method 11. Most ATP molecules are produced during which phase of aerobia respiration? a. Fermentation b. Krebs cycle c. Glycolysis d. Electron transport chain 12. The goal of disinfection is to eliminate ____ whereas the goal of sterile technique is to exclude ____ a. bacteria , bacteria and viruses b. pathogens, all microorganisms c. nonpathogenspathogens d. all microorganisms, pathogens 13. Which one of the following statements about archaea is false? Select one: a. The cell walls of archaea contain a thicker layer of peptidoglycan than the cell walls of bacteria. b. Some archaea live in extremely hot environments. c. Archaea are more closely related to eukaryotes than they are to bacteria. d.…5. Give two reasons for why heat fixing is used? Adherence of bacterial cells to the slide Denaturing of bacterial enzymes to preserve cellular integrity
- 2 in a microbial death curve, the logarithmic number of 10^6 corresponds to arithmetic value of 3700000, then what would be the number of survival cells at apg value of 10^2DENGUE QUESTIONS 1. What results in the combo test would show that the patient has primarydengue virusinfection? Why?2. What results in the combo test would show that the patient has secondary denguevirusinfection? Why?3. How does the virus cause decrease in platelet count?4. What is break bone fever in dengue virus infection?5. Why are Aedes mosquitoes preferred by dengue virus?1) Is sputum normally considered a high-risk fluid for the transmission of bloodborne pathogens? Why or why not?
- PLEASE ANS ASAP 1. When placed into a hypertonic solution, a bacterial cell will: a:die as a result of dessication. b: lyse c: swell d. take in more water than it releases . 2. Which one of the following methods of antimicrobial susceptibility testing requires a dilution series of the antibiotic and can provide a minimum inhibitory concentration? a. Gradient diffusion method b. Agar macrodilution method c. Broth microdilution method d. Disk diffusion method 3. Blood for culture is usually obtained from a vein located in which area? a. Brachial b. Femoral c. Axillary d. Antecubital 4. All clinical specimens submitted to the clinical microbiology laboratory must be: a. all of these b. property and carefully collected. c. properly labeled. d. properly transported to the laboratory 5. Contact precautions are required for patients with a. all of these b. respiratory syncytial virus c. Clostridium difficile c. associated diseases. d. infections caused by multidrug-resistant…PLEASE ANS ASAP 1. When placed into a hypertonic solution, a bacterial cell will: a:die as a result of dessication. b: lyse c: swell d. take in more water than it releases . 2. Which one of the following methods of antimicrobial susceptibility testing requires a dilution series of the antibiotic and can provide a minimum inhibitory concentration? a. Gradient diffusion method b. Agar macrodilution method c. Broth microdilution method d. Disk diffusion method 3. Blood for culture is usually obtained from a vein located in which area? a. Brachial b. Femoral c. Axillary d. Antecubital 4. All clinical specimens submitted to the clinical microbiology laboratory must be: a. all of these b. property and carefully collected. c. properly labeled. d. properly transported to the laboratory 5. Contact precautions are required for patients with a. all of these b. respiratory syncytial virus c. Clostridium difficile c. associated diseases. d. infections caused by multidrug-resistant…2. What is/are the adsorption mechanism of activated carbon on antibiotics? 3. What will happen to the activated carbon if I will modify it using acid treatment, specifically sulfuric acid?
- 1. Describe the three different type of hemolysis that are observed on blood agar.2. What is a selective medium?3. What is a differential medium?4. Which media can be used to isolate E. coli samples from contaminated lettuce?5. Which two media would be used to identify a sample taken from a patient with suspected gonorrhea?6. Would you be able to grow a sample obtained from a patient's wound (suspected to be infected with MRSA) on EMB? Explain.7. What is the color or TSI for Salmonella?8. What is a fastidious organism?1-Why it is important to keep the National health screening program running despite the few number of cases like diabetes?1.State what is the Miller-Urey Experiment 2.When was it done 3. Describe in detail how it works