Micro Bio Lab Exam 3 Q&A 100% Pass | Graded A+

Micro Bio Lab Exam 3 Q&A 100% Pass | Graded A+ What is sensitivity to antibiotics? - Ability of bacteria to be affected by antibiotics How can you determine if a bacterium is sensitive, intermediate, or resistant to an antibiotic? - Disk diffusion (Kirby-bauer) or minimal inhibitory concentration What is disk diffusion (Kirby-bauer)? - A method to measure the zone of inhibition to determine antibiotic sensitivity What does it mean if there is no zone of inhibition in disk diffusion? - The bacteria is resistant to the antibiotic What is minimal inhibitory concentration (MIC)? - The lowest concentration of antibiotic that prevents bacterial growth How is MIC determined? - By using liquid cultures with doubling concentrations of antibiotics and observing bacterial growth What are antibiotics? - Substances produced by microorganisms that inhibit the growth of other microorganisms