Author: Anonymous

Table 20.2The following results were obtained from a disk-diffusion test for microbial susceptibility to antibiotics. Staphylococcus aureus was the test organism. Antibiotic Zone of Inhibition A 3 mm B 7 mm C 0 mm D 10 mm In Table 20.2, the most effective antibiotic tested was

Which one of the following statements is a reason for NOT classifying viruses in one of the threedomains of life (Bacteria, Archaea, Eukarya) rather than in a fourth separate domain?

The antibiotic actinomycin D binds between adjacent G-C pairs, thus interfering with

Which of the following characterizes the Domain Bacteria?

1. Explain why scientific names are used. (+2pt) 2. Why can’t we use common names for organisms? Give one reason. (+1 pt) For extra credit, give up to 2 additional reasons. (up to 2pt EC) 3. Give an example of a scientific name (binomial nomenclature) and the organism’s common name. It can be any type of organism. (+2pt)  

Which of the following regarding antimicrobial control agents is FALSE?

Which of the following disinfectants acts by disrupting the plasma membrane?

Table 10.11.  9+2 flagella2.  Nucleus3.  Plasma membrane4.  Peptidoglycan5.  Mitochondrion6.  FimbriaeIn Table 10.1, which feature(s) is (are) found only in prokaryotes?

Table 20.1The following data were obtained from a broth dilution test.Concentration of Antibiotic XGrowthGrowth in Subculture2 μg/ml++10 μg/ml-+15 μg/ml–25 μg/ml–In Table 20.1, as illustrated by the data shown, the minimal bactericidal concentration of antibiotic X is

Which of the following results in lethal damage to nucleic acids?