518ListenWhich of the following is NOT a chemical method of microbial control?a) refrigerationOb) ethyl alcoholc) bleachd) phenol compounds

In order to stop the spread of infections and diseases, microbes must be under control. Thereby…

Answered: Which of the following is NOT a…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Why are the Methyl Red/Voges-Proskauer tests done after 48 hours of incubation?a) Readings taken at earlier time points may be different from readings taken at 48 hours b) Bacteria need 48 hours to process all the oxygen in the media c) Bacteria grow slowly in the MR/VP media d) K2HPO4 needs 48 hours to react with the acids produced by fermenting bacteria
which of the following antibiotics are batericidal? a) polymyxin b b) rifamycins c) tetracyclines d) sulfonamides e) erythromycin
1) The slowest method in reducing the number of bacteria in a culture or the environment is: a) Sterilization b) Disinfection c) Antisepsis d) Sanitization e) Autolysis2) The molecule that helps insert the peptidoglycan monomers into the cell wall of the bacteria is: a) Ferredoxin b) Spherion c) Penicillin Binding Protein (PBP) d) Bactoprenol e) -Lactam Ring 3) A division in Eukaryotes that involves nuclear division without a cytokinesis will lead to the formation of: a) Baeocyte b) Mycellia c) Syncitium d) Myofibril e) all the above4) All the following are critical factors in determining the effectiveness of an antimicrobial agent except: a) Population size b) Species c) Location d) pH e) Temperature 5) The autoclave temperature must be raised up to _____ in order to effectively kill the bacterial spores: a) 121.1 oF b) 121.1 oC c) 121.1 oK d) 211 oF e) 112 oF
19) Which of the following BEST describes an agent that is bactericidal? A) Windex. B) It suspends bacterial growth. C) It kills the bacteria. D) It causes the bacteria to destroy themselves
Listen Which of the following regarding controlling microbial growth is true? a) Microbial death rate increases with an increase in temperature b) The more microbes present, the shorter amount of time it will take to kill the population E c) Gram-positive bacteria tend to be more resistant to chemicals than gram- negative bacteria d) Microbial death rate increases as pH approaches 7 (neutral) Previous Page Submit Quiz $ R Next Page 5 of 10 questions saved % H K Page 4 of 10
A hyperthermophile most likely has: a) cryoprotectants b) low void volume proteins c) unsaturated fatty acids d) isoprenoid lipids
Which of the following BEST describes an agent that is bacteriostatic? A) It suspends bacterial synthesis of Tranexamic Acid. B) It kills the bacteria by destroying its cell wall. C) It zaps the bacteria with static electricity. D) It suspends bacterial growth.
Antibiotics are very important in modern medical treatment: a) How is Giardia, a eukaryotic pathogenic parasite, affected by penicillin? Explain your answer. b) Is it beneficial to use sulfonamide and trimethoprim at the same time to treat an infection? Motivate your answer.
Biohazard saftey precautions should be adheared to according to OSHA by all Forensic Scientists to protect aganist: A) HIV B) Blood- borne pathogens C) Hepatitis B D) Air-borne pathogens E) A and B F) All of the above
Which of the following is not a method used to introduce foreign DNA into a bacterial cell? a) biolistic gun b) calcium chloride treatment followed by heat shock c) infection with a specific phage d) electroporation
When do we make the determination that a bacterium is Gram positive? A) Safranin washes the crystal violet die out of the cell wall. B) Crystal violet die is not able to absorb into the cell wall. C) Alcohol does not wash the crystal violet die out of the cell wall. D) Crystal violet turns the bacterium a yellow color.
Which of the following is not a good portal for entry for a pathogen? A) Nasal cavity B) Skin C) Urinary tract D) Mucous membranes E) Muscle

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Which of the following is NOT a chemical method of microbial control? a) refrigeration b) ethyl alcohol c) bleach d) phenol compounds