Microbe Resistance
Which bacteria is more resistant, gram negative or gram positive
gram negative bacteria
Quinolones and rifampin, prevent the synthesis of Nucleic acids. Pair which goes to DNA and RNA
DNA: Quinolones (-floxacin, -flucytosine)
RNA: Rifampin
Determine the difference between ionizing and nonionizing radiation
ionizing- blast DNA apart ; high po
Least resistance
Penicillin's mode of action and target
Inhibit cell wall of gram-positive bacteria
Give two examples of ionizing radiation
gamma-ray and x-ray
Name two microbe types, known to have the high resistance
Prions and bacterial endospore
What 2 antimicrobial agent uses free radicals to induce DNA, protein, and membrane lipid damage via oxidation
H2O2 and Ozone
Describe the difference between Membrane and HEPA filters
membrane filters trap microbes in liquid while HEPA filters remove microbes from air and are commonly used in hospitals
Give the 4 the microbe categories that alcohol is effective against
gram+ , gram- , enveloped viruses , fungi:yeast&mold
Provide protozoan cyst and protozoan trophozoites resistance categories
protozoan cysts are moderate R.
protozoan trophozoites are least R.
Aminoglycosides suffix and specific mode of action
-mycin ; misread mRNA inhibiting protein synthesis
Give the four moist heat mechanisms
1.Steam under pressure 2.Non-pressureized steam/tyndallization 3.Boiling H2O 4.Pasteurization/Flash Method
Pseudomonas, Mycobacteria, and Acinetobacter fall under what umbrella of resistance?
Moderate resistance for all naked viruses
Provide tetracycline antibiotic's: suffix, ribosome size, mode of action- specify how
-cycline ; 30s ; Inhibit protein synthesis ; blocks tRNA attachment to A site
Name the 6 categories of microbial control methods?
1. Heat (Moist/Dry) 2. Filtration 3. Cold 4. Osmotic Pressure 5. Radiation 6. Desiccation (Lyophilization)