Micro 250 Quiz 4 prep.docx - Started on State Completed on Time taken Grade Tuesday October 8 2019 2:15 AM Finished Tuesday October 8 2019 3:00 AM 45

Micro 250 Quiz 4 prep.docx - Started on State Completed on...

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Started on Tuesday, October 8, 2019, 2:15 AM State Finished Completed on Tuesday, October 8, 2019, 3:00 AM Time taken 45 mins 10 secs Grade 85.50 out of 90.00 ( 95 %) The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell walls is ______. Select one: a. lactic acid b. hydrochloric acid c. lysozyme d. histamine e. bile Feedback The correct answer is: lysozyme Question 2 Correct 4.50 points out of 4.50 Flag question Question text The study of the frequency and distribution of a disease in a defined population is ______.
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Select one: a. pathology b. clinical microbiology c. medicine d. immunology e. epidemiology Feedback The correct answer is: epidemiology Question 3 Correct 4.50 points out of 4.50 Flag question Question text Your aim is to sterilize prosthetic devices like heart valves and artificial joint structures before being used in the patient. Considering where they will be placed and the probable composition of the devices, what would be the best chemical to use? Select one: a. Iodine b. Crystal violet dye c. Quaternary ammonium compounds d. Bleach Feedback The correct answer is: Quaternary ammonium compounds Question 4 Correct 4.50 points out of 4.50 Flag question
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Question text Which two antibiotics affect nucleic acids of bacteria? Select one: a. Tetracycline and amphotericin B b. Trimethoprim and sulfonamides c. Rifampin and quinolones d. Tetracycline and bacitracin e. Penicillin and vancomycin Feedback The correct answer is: Rifampin and quinolones Question 5 Correct 4.50 points out of 4.50 Flag question Question text Antigens that elicit allergic reactions are called ______. Select one: a. superantigens b. heterophilic antigens c. allergens d. autoantigens Feedback The correct answer is: allergens Question 6 Correct 4.50 points out of 4.50
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Flag question Question text An example of artificial active immunity would be Select one: a. chickenpox infection, followed by lifelong immunity.
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