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What is the difference between disinfectants, antiseptics and antibiotics?
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- Ex. 43 = Evaluating the Effectiveness of Common Antiseptics and Disinfectants (p. 397) What is the difference between an antiseptic and a disinfectant? What is the difference between a bactericidal and a bacteriostatic compound? How can you determine which species are sensitive to an antiseptic? Ex. 44 = Antibiotic Evaluation by the Kirby-Bauer Method (p. 405) Why is it important to standardize this test? What parts of the test are standardized? What makes the Mueller Hinton agar especially useful for this test? How can you determine if an organism is sensitive/resistant to an antibiotic? Understand the relationships between Kirby Bauer and antibiotic susceptibility/resistance.What are the three categories of biological agents?(i) What are disinfectants? Give an example.(ii) Give two examples of macromolecules that are chosen as drug targets.(iii) What are anionic detergents? Give an example.
- Unlike a disinfectant, an antiseptica) sanitizes objects rather than sterilizes them.b) destroys all microorganisms.c) is non-toxic enough to be used on human skin.d) requires heat to be effective.e) can be used in food products.Which statement among A-D is false regarding physical and chemical agents of control? A) O Effective killing of bacteria via irradiation with UV light would likely take longer than if irradiated with gamma rays or x-rays. B) O Detergent-type disinfectants exert their effect by solubilizing membranes. C) O Antiseptics are generally not as strongly concentrated as disinfectants D) O Sterilization and pasteurization are equivalent processes.What is the difference between a disinfectant and an antiseptic? Which is most effective at removing microbes from a product: sanitization, degerming, or sterilization? Explain