Question

Page 6 of 8 4 Radiation is changed les energy to breaks DNA (Gamma DNA replication) No r dian (UV creates pynimidine dimers that inhibit DNA replication Al the above None of the above Filtration is the physical removal of microbes by pening age or liquid through a fiber Tor F Chemical Agents in Microbial Control include Disinfectants, antiseptics, sterilants, degermees, and preservatives. Some desirable qualities of chemicals include modation in bw concentration brand pastrum s botiaily à all the above Dane the above 57. The germicide activity of a chemical is affected by the time of emaire the strength of the germicide a al the above 5 the operation the germicidal chemical pone of the above 58. Halogens indude Chlorine, which is used to disinfect water. Halogens Denature proteins by the disruption of disulfide bonds Are inactivated by organic matter all the above 2 none of the above 39. Hanvy Metals Kill vegetative cells in low concentrations by inactivating proteins He idio Sal the above 2 none of the above 60 Dyes no Antimicrobial Agents Aniline dyes are very active against gram-positive species of bacteria and various Ringi. TarF CHAPTER 12 61. Which of the following is NOT a mode of action of an antiviral chemical? book penetration 2 black transcription and translation & inhibit DNA synthesis 2 bbck maturation bond toegesterol in the cell membrane 62. An antiviral that is a guanine analog would have an antiviral mode of action that blocks penetration blods DNA replication boleh peptidoglycan cos linking 63. Antivins that target reverse transcriptase would be used to treat induenza A virus HIV. Herpes zoster virus 2 Respiratory syncytial virus e hepatitis C virus 64. The cellular basis for BACTERIAL RESISTANCE to antimicrobics include 2 bacterial chromosomal mutations synthesis of enzymes that alter drug structure G prevention of drug entry into the call a alteration of drug receptors on call targets e All the choices are correct

Answer 1

Ans:

54-(c) All the above.

55- T

56- (c)All the above.

57- (d) All the above.

58- (b) are inactivated by organic matter.

59- (a) inactivating proteins.

60- F

61- (e) bond to ergosterol in the cell membrane.

62- (b) block DNA replication.

63- (b) HIV

64- (e) All the choices are correct.