TEST BANK microbiology a systems approach cowan 3e chapter011

Chapter 011 Physical and Chemical Control of Microbes Multiple Choice Questions 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 Yeas t The process that destroys or removes all microorganisms and microbial forms including bacterial endospores on inanimate objects is A Disinfecti on B Sterilizati on C Antisepsi s D Sanitizati on E Degermati on The process of using a cleansing technique to mechanically remove and reduce microorganisms and debris to safe levels is A Disinfecti on B Sterilizati on C Antisepsi s D Sanitizati on E Degermati on The use of a physical or chemical process to destroy vegetative pathogens is A Disinfecti on B Sterilizati on C Antisepsi s D Sanitizati on E Degermati on The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is A Disinfecti on B Sterilizati on C ANTISEPSIS D Sanitizati on E Degermati on Scrubbing or immersing the skin in chemicals to reduce the numbers of microbes on the skin is A Disinfecti on B Sterilizati on C Antisepsi s D Sanitizati on E Degermati on Which of the following types of control agents would be used to achieve sterility? A Virucid e B Bacterici de C Germicid e D Sporicid e E Fungicid e The easiest microbial forms to kill or inhibit are A Naked viruses B Vegetative bacteria and fungi C Endospore s D Protozoan cysts E Mycobacteria and staphylococci The method of removing vegetative microbial life forms from inanimate objects is termed A Antisepsi s B Disinfecti on C Sterilizati on D Decontaminati on E Degermi ng 10 The method of removing vegetative life forms from living surfaces is termed A Antisepsi s B Disinfecti on C Sterilizati on D Decontaminati on E Fegermin g 11 The removal of all life forms from inanimate objects is termed A Antisepsi s B Disinfecti on C Sterilizati on D Decontaminati on E Degermi ng 12 The betadine swab before blood donation in an example of A Antisepsi s B Disinfecti on C Sterilizati on D Decontaminati on E Degermi ng 13 The alcohol wipe before an injection is an example of A Antisepsi s B Disinfecti on C Sterilizati on D Decontaminati on E Degermi ng 14 A cleansing method that mechanically removes microbes and other debris to reduce contamination is A Disinfecti on B Sterilizati on C Antisepsi s D Sanitizati on E Degermati on 15 Which is correct regarding the rate of microbial death? A Cells die at increasingly greater rates B Only older cells die in a culture C Cells in a culture die at a constant rate D Upon contact with the control agent, all cells die at one time E Cells become metabolically inactive but are never killed 16 Which of the following factors will influence the action of microbial agents? A The number of microorganisms B The kind of microorganisms C Temperature and pH D Mode and dosage of the agent E All of these will influence the action 17 Microbial death occurs when there is A No movement B No reproduction C A change in appearance D A decrease in size E All of these occur 18 Each of the following is the target of antimicrobial agents except A Cell walls B Cell membranes C Ribosome s D Cellular proteins E Cytoplas m 19 Surfactants work by A Coating the organism preventing interaction with its environment B Blocking transport into the organism C Blocking transport out from the organism D Disrupting membrane integrity E All of the choices are correct 20 Some microbial control agents are able to _ cell proteins by breaking bonds that maintain the native state, three-dimensional configuration of the proteins A Denatur e B Bin d C Dissolv e D All of the choices are correct 21 Agents that can denature microbial proteins include all of the following except A Moist heat B Alcoh ol C Acid s D Metallic ions E Xrays 22 Which of the following does not affect microbial nucleic acids? A Moist heat B Ultraviolet light C Xrays D Ethylene dioxide E Formaldehy de 23 Physical agents for controlling microbial growth include all the following except A Ultraviolet radiation B Boiling water C HEPA filters D Pasteurizati on E Hydrogen peroxide 24 Sterilization is achieved by A Flash pasteurization B Hot water C Boiling water D Steam autoclave E All of the choices are correct 25 Dry heat A Is less efficient than moist heat B Cannot sterilize C Includes tyndallization D Is used in devices called autoclaves E Will sterilize at 121° C for 15 minutes 26 The minimum sterilizing conditions in a steam autoclave are A 121°C at 15 psi for 15 minutes B 63°C for 30 minutes C 160°C for hours D 71.6°C for 15 seconds E 100°C for 30 minutes 27 The shortest time required to kill all the microbes in a sample at a specified temperature is called the A Thermal death point (TDP) B Thermal death time (TDT) C Sporicidal time D Death phase point E None of the choices are correct 28 The lowest temperature needed to kill all microbes in 10 minutes is the A Thermal death point (TDP) B Thermal death time (TDT) C Sporicidal time D Death phase point E None of the choices are correct 29 Disinfection of beverages such as apple juice, milk and wine is optimally achieved by A Pasteurizati on B Chlorinati on C Moist heat autoclave D Filtratio n E Boiling water je cti ve :1 04 Na m ef ou rc at eg ori es of ce llu lar tar ge ts for ph ysi ca la nd ch e mi ca la ge nt s Le ar ni ng Ob je cti ve :1 05 Na m e m et ho ds of ph ysi ca lc on tro lo f mi cr oo rg an is m s Le ar ni ng Ob je cti ve :1 05 Na m e six m et ho ds of ph ysi ca lc on tro lo f mi cr oo rg an is m s Le ar ni ng Ob je cti ve :1 06 Di sc us s bo th m ois ta nd dr y he at m et ho ds an di de nti fy m ult ipl e ex a m pl es of bo th Le ar ni ng Ob je cti ve :1 06 Di sc us s bo th m ois th ea ta nd dr y he at m et ho ds an di de nti fy m ult ipl e ex a m pl es of bo th Le ar ni ng Ob je cti ve :1 07 De fin et he rm al de at ht im e an dt he rm al de at h po int Le ar ni ng Ob je cti ve :1 08 Ex pl nf ou rd iff er en t m et ho ds of m ois th ea tc on tro l Le ar ni ng Ob je cti ve :1 08 Ex pl nf ou rd iff er en t m et ho ds of m ois th ea tc on tro l Le ar ni ng Ob je cti ve :1 09 Ex pl nt wo m et ho ds of dr y he at co ntr ol Le ar ni ng Ob je cti ve :1 10 Id en tif y ad va nt ag es an d di sa dv an ta ge s of co ld an d de ssi ca tio n Le ar ni ng Ob je cti ve :1 11 Di ffe re nti at e be tw ee nt he tw ot yp es of di ati on co ntr ol m et ho ds Le ar ni ng Ob je cti ve :1 11 Di ffe re nti at e be tw ee nt he tw ot yp es of di ati on co ntr ol m et ho ds L ea rni ng ob je cti ve :1 17 Ex pl nt he m od e of ac tio n of al co ho ls Le ar ni ng Ob je cti ve :1 12 Ex pl n ho w filt rat io nf un cti on s as a co ntr ol m et ho d Le ar ni ng Ob je cti ve :1 13 Id en tif ys o m e co m m on us es of os m oti c pr es su re as a co ntr ol m et ho d Le ar ni ng Ob je cti ve :1 14 Na m et he de sir ab le ch ar ac ter ist ics of ch e mi ca lc on tro la ge nt s Le ar ni ng Ob je cti ve :1 15 Di sc us ss ev er al di ffe re nt lo ge n ag en ts an dt he ir us es Le ar ni ng Ob je cti ve :1 16 Lis ta dv an ta ge s an d di sa dv an ta ge st o ph en oli cc o m po un ds Le ar ni ng Ob je cti ve :1 17 Ex pl nt he m od e of ac tio n of al co ho ls Le ar ni ng Ob je cti ve :1 18 Pi n po int th e m os ta pp ro pri at e ap pli ca tio ns of hy dr og en pe ro xi de ag en ts Le ar ni ng Ob je cti ve :1 19 De fin e su rfa ct an ta nd ex pl ni ts m od e of ac tio n Le ar ni ng Ob je cti ve :1 20 Id en tif ys o m e he av y m et al co ntr ol ag en ts an dt he ir m os tc o m m on ap pli ca tio ns Le ar ni ng Ob je cti ve :1 21 Di sc us s ad va nt ag es an d di sa dv an ta ge s of al de hy de ag en ts Le ar ni ng Ob je cti ve :1 22 Id en tif y ap pli ca tio ns for et hy le ne ox id e st eri liz ati on Le ar ni ng Ob je cti ve :a nti se ps is an d de co nt a mi na tio n Le 11 ar ni ng Ob je cti ve :a nti se ps is an d de co nt a mi na tio n Le 14 ar ni ng Ob je cti ve :d isi nf ec tio n ... such as apple juice, milk and wine is optimally achieved by A Pasteurizati on B Chlorinati on C Moist heat autoclave D Filtratio n E Boiling water 30 Placing organisms at 4oC is A Bacteriocid al... filters D Pasteurizati on E Hydrogen peroxide 24 Sterilization is achieved by A Flash pasteurization B Hot water C Boiling water D Steam autoclave E All of the choices are correct 25 Dry heat A Is... by breaking bonds that maintain the native state, three-dimensional configuration of the proteins A Denatur e B Bin d C Dissolv e D All of the choices are correct 21 Agents that can denature