PHCY219 Lecture : 219 2.5.pdf
13 Aug 2013
School
Department
Course
Professor
Document Summary
A natural or synthetic compound that kills or prevents growth of bacteria or other microorganisms. An antimicrobial agent produced by a microorganism: describe basic properties of bacteriostatic, bacteriocidal and bacteriolytic antimicrobials. Impairment of growth is reversed by dilution. (i. e. if you dilute the strength, it won"t inhibit the growth so much) Examples include some antimicrobials that inhibit protein synthesis. Examples include antibiotics that inhibit cell wall synthesis penicillin. Liquid culture can find out the lowest concentration of microbe inhibition (minimum inhibitory concentration = mic). The tubes below have bacteria in a liquid culture. In addition, there is a drug in there. This method is effective for targeting selected bacteria. Tube becomes clear mic: explain basic mechanisms by which the following antimicrobial agents prevent bacterial growth: sulphanilamide, isoniazid, quinolones (ciproflaxin), Targets folic acids block synthesis of nucleic acid. Inhibits synthesis of mycolic acid (part of cell wall) by inhibiting nad-dependent enzymes in.
