Which of the following statements is true about bacterial conjugation?
A) It requires the F factor
B) It is controlled by F plasmid and sex pili
C) It is mediated by a bacterial virus
D) It is found only in gram-
...
Which of the following statements is true about bacterial conjugation?
A) It requires the F factor
B) It is controlled by F plasmid and sex pili
C) It is mediated by a bacterial virus
D) It is found only in gram-negative bacteria
8. It refers to the invasion or colonization of the body by pathogenic bacteria:
A) Disease B) Infestation C) Infection D) Syndromes
9. Influenza develops rapidly and lasts only for a short time. This is described as:
A) Acute B) Subacute C) Chronic D) Latent
10. This period is characterized by mild aches, malaise and it follows the period of incubation of the
disease:
A) Decline phase B) Prodormal stage
C) Illness stage D) Convalescence stage
11. The number of cases of Filipinos with AIDS has increased tremendously over the past few
years. This is described as:
A) Endemic B) Epidemic C) Pandemic D) Acute
12. The following statements are true about endotoxins, except:
A) They are also known as lipopolysaccharides.
B) They are integral part of the cell walls of gram-negative bacteria.
C) They are normally not as toxic as bacterial exotoxins.
D) Their toxicity can be destroyed by autoclaving.
13. The following antibiotics interfere with the synthesis of proteins in microorganisms, except:
A) Aminoglycosides B) Tetracyclines
C) Lincomycin D) Cephalosporins
14. This antibiotic has been found to be toxic, so its use has been limited only for the treatment of
TB:
A) Penicillin B) Bacitracin C) Vancomycin D) Cycloserine
15. Aplastic anemia is a rare but usually fatal side effect associated with the use of this antibiotic:
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A) Gentamicin B) Chloramphenicol C) Bacitracin D) Polymixin
16. It is the most effective skin antiseptic used in medical practice:
A) Chlorine B) Merthiolate C) Hydrogen peroxide D) Iodine
17. This chemical agent is used extensively in hospitals for the sterilization of heat sensitive
materials. It kills by alkylating both proteins and nucleic acids:
A) Ethylene oxide B) Formaldehyde
C) Acids and alkalis D) Hydrogen peroxide
18. It is the method of choice in sterilizing heat sensitive solutions:
A) Autoclave B) Filtration C) Radiation D) Pasteurization
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