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Micro Lab 24 & 25

Chemical Methods of Control: Disinfectants and Antiseptics & Antimicrobial Drugs

QuestionAnswer
chemicals available for controlling the growth of microbes antimicrobial agents
chemical agents used on inanimate objects to lower the level of microbes on their surfaces disinfectants
chemicals used on living tissue to decrease the number of microbes antiseptics
chemicals that result in bacterial death bactericidal agents
chemicals causing temporary inhibition of growth of bacteria bacteriostatic agents
standard method for measuring the effectiveness of a chemical agent, uses Salmonella enterica, Staphylococcus aureus, and Pseudomonas aeruginosa and is limited to bactericidal compounds and cannot be used to evaluate bacteriostatic compounds. American Official Analytical Chemist's use-dilution test
measures what concentration level is effective after 10 mins at 20*C Use-dilution test method
against life antibiosis
inhibiting substance produced by a microorganism that inhibits other microorganisms antibiotics
antimicrobial chemicals used internally whether natural (antibiotics) or synthetic antimicrobial drugs
disease-causing organism pathogen
zone inhibition affected by diffusion rates and growth rate of organism and minimum inhibitory concentration. disk-diffusion method
antimicrobial agent diffuses from high concentration to low concentration - effective agent will inhibit growth & measurements can be made of the size around the disks zones of inhibition
standardized test for agar diffusion methods Kirby-Bauer test
allows the antimicrobial agent to diffuse freely in the Kirby-Bauer test Mueller-Hinton agar
determined by testing for bacterial growth in dilutions of the antibiotic in nutrient broth minimum inhibitory concentration (MIC)
chemical drugs chemotherapeutic agent
Created by: hollieritter
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