Describe what three strategies are used to identify microorganisms?

Which of the following methods has the least ability to sterilize below the surface? In other words, which has the least power to penetrate and sterilize? O O a) electron beams b) all of these methods have very little penetrating power c) gamma radiation d) X rays e) ultraviolet (UV) radiation at 260 nm Search a 19

Which of these antibiotics would do the best job as a broad spectrum antibiotic?

How is the information from a Kirby-Bauer disk diffusion test used for the recommendation of the clinical use of an antimicrobial drug? Who should be responsible for discovering and developing new antibiotics? Support your answer with reasoning.

what are various physical methods used by microbiologists to control microbial growth?

6) The autoclave desired Temperature to kill bacterial spores must be left for at least ____ in order to effectively kill the bacterial spores: a) 5 mins b) 10 mins c) 15 mins d) ½ hr e) 1 hr.7) The autoclave pressure must reach at least ________ in order to effectively kill the bacterial spores: a)15 PSI b) 15 Joules c) 15 KSI d) 15 Lbs e) 15 Atmospheres8) The antibiotic that inhibits the cell wall formation through the -Lactam ring is/are:a) Vancomycin b) Tetracycline c) Penicillin d) Cephalosporin e) c & d9) The sum of all chemical reactions in your body defines: a) anabolism b) metabolism c) catabolism d) Cellular Respiration e) Biosynthesis10) If in a bacterial growth medium waste product accumulates than the bacterial growth stage will be called: a) Death b) Convalescence c) Lag phase d) Log e) Stationary

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 is  bactericide exposure?

List mechanisms for control of microbial organisms for physical, chemical, and mechanical methods.

Define selective toxicity. How does the concept of selective toxicity highlight the importance of studying basic microbe structures, genetics, and chemistry? What is the relationship between selective toxicity and the number of antibacterial versus antifungal drugs?