Question

7 through 14 please

7. A superinfection occurs due to: A) a lack of drugs to treat the infection; B) drug toxicity to kidneys: C) using the wrong drugs to treat the patient: D) destruction in normal flora leading to overgrowth of an unaffected species which in turn causes the disease; E) an allergic immune response 8. heat is more rapidly effective and efficient compared to heat. A) High, dry; B) High, moist; C) Dry, moist; D) Moist, dry, E) Moist, high 9. Which of the following can be used to disinfect kitchen counter tops but not used to degerm skin? A) Alcohol; B) Bleach; C) Iodine; D) Hydrogen peroxide 10. Air sterilization devices such as the HEPA filters have a pore size around: A) 1 mm; B) 0.25-.45 pm; C) 5 um; D) 10 nm 11. A histidine auxotroph A) requires the addition of histidine in the minimal medium to grow; B) does not have the histidine codons; C) cannot grow in the presence of histidine; D) often has mutation(s) in the histidine biosynthesis operon; E) both A and D 12. Which of the following microbial forms have the highest resistance to physical and chemical controls? A) naked viruses; B) protozoan cysts; C) fungal spores; D) bacterial endospores; E) yeast 13. Entry of a bacteriophage into the lytic cycle after lysogeny has been established is called A) lysogenic conversion; B) lysogenic reversion; C) induction; D) transduction 14. Which of the following will not support viral cultivation?

Answer 1

7. A drug toxicity to kidneys

8. D Moist, dry

9 B bleach

10. B 0.25-0.45

11.E. both A and D

12. D bacterial endospore

13. A. lysogenic conversion

14 D a blood agar