FINAL EXAM STRAIGHTERLINE
r r r
MICROBIOLOGY | QUESTIONS & r r r r
ANSWERS (VERIFIED) | LATEST U
r r r r
PDATE | GRADED A+ r r r
Inrthernitrogenrcycle,rwhichrofrtherfollowingrstepsrinvolvesrremovalrofrnitrogenrfromrthe
atmosphererbyrbacteria?
CorrectrAnswer:r NitrogenrFixation
IfrenoughrH+rionsrareraddedrtorpurerwaterrtorraisertherH+rconcentrationrofrthersolution
tortenrtimesrhigherrthanrtheroriginalrconcentration,rwhatrisrtherresultingrOH-
concentrationrofrthersolution?
CorrectrAnswer:r 10-8rM
Fungirarerablertorreproducerasexuallyrbyrcreatingrconidiosporesrandrsporangiospores.
Whichrofrtherfollowingrisranraccuraterexplanationrforrwhyritrisradvantageousrthatrthey
areralsorcapablerofrsexualrreproduction?
CorrectrAnswer:r Offspringrfromrtworparentsrmayrhavervariationsrinrformrandrfunction
thatrcontributertorsurvivalrofrtherspecies.
1
,Inrarlaboratoryrbacterialrcellrculturerthatrhasrbeenrinfectedrbyrarvirus,rplaquesrarerareas
inrwhich...
CorrectrAnswer:r thervirusrhasrspreadrandrleftrbehindrtherremainsrofrdeadrcells.
Thersun'srenergyrisrdeliveredrasrdiscreterpacketsrthatrtravelrasrwavesrandrarercalled
CorrectrAnswer:r Photons
Whatrisrarcharacteristicrofraerobicrrespiration?
CorrectrAnswer:r Therprocessrincludesrglycolysis,rtherKrebsrcycle,randrtherelectron
transportrchain.
Inrcompletingrproteinrsynthesisrinrarprokaryote,rwhatrbasicrmessagerisrcarriedrbyra
specializedrcodonrthatrhasrnorcorrespondingrtRNA?
CorrectrAnswer:r "Terminaterhere."
Microbialrdrugrresistancercanrbercausedrbyrmutationsrorrbyrintroductionrofrnewrgenes
intorarpopulation.rWhichrofrtherfollowingrcanronlyrbercausedrbyrtherintroductionrofrnew
genesrintorarpopulation?
CorrectrAnswer:r newrenzymesrthatrinactivatertherdrugrarersynthesized
Whyrdortherhands,rfeet,randrbreastsrhavermorerlymphaticrvesselsrforrhostrdefenserthan
otherrareasrofrtherhumanrbody?
CorrectrAnswer:r Theyrhaverarhighrriskrforrinfectionrduertorfrequentrcontact.
2
, Penicillinrfunctionsrasranrantimicrobialragentrbyrinhibitingrbacterial...
CorrectrAnswer:r cellrwallrsynthesis.
Whichrclassrofreukaryoticrmicroorganismsrcanrbersubdividedrintorgroupsrsuchras
Mastigophora,rSarcodina,rCiliophora,randrApicomplexa?
CorrectrAnswer:r Protozoa
Geneticrmaterialrcanrberexcisedrfromronerchromosomerandrdirectlyrintegratedrinto
anotherrvia...
CorrectrAnswer:r transposons
Whatrimmunercellrsecretesrnumerousrcytokinesrthatrhelprtorcoordinatertherresponserof
otherrimmunercells?
CorrectrAnswer:r THrcell
WhatrenzymesrarerusedrtoramplifyrDNArduringrPCR?
CorrectrAnswer:r DNArpolymerase
Whichrofrtherfollowingrisrarscientificrname?
CorrectrAnswer:r Streptococcusrpyogenes
3
r r r
MICROBIOLOGY | QUESTIONS & r r r r
ANSWERS (VERIFIED) | LATEST U
r r r r
PDATE | GRADED A+ r r r
Inrthernitrogenrcycle,rwhichrofrtherfollowingrstepsrinvolvesrremovalrofrnitrogenrfromrthe
atmosphererbyrbacteria?
CorrectrAnswer:r NitrogenrFixation
IfrenoughrH+rionsrareraddedrtorpurerwaterrtorraisertherH+rconcentrationrofrthersolution
tortenrtimesrhigherrthanrtheroriginalrconcentration,rwhatrisrtherresultingrOH-
concentrationrofrthersolution?
CorrectrAnswer:r 10-8rM
Fungirarerablertorreproducerasexuallyrbyrcreatingrconidiosporesrandrsporangiospores.
Whichrofrtherfollowingrisranraccuraterexplanationrforrwhyritrisradvantageousrthatrthey
areralsorcapablerofrsexualrreproduction?
CorrectrAnswer:r Offspringrfromrtworparentsrmayrhavervariationsrinrformrandrfunction
thatrcontributertorsurvivalrofrtherspecies.
1
,Inrarlaboratoryrbacterialrcellrculturerthatrhasrbeenrinfectedrbyrarvirus,rplaquesrarerareas
inrwhich...
CorrectrAnswer:r thervirusrhasrspreadrandrleftrbehindrtherremainsrofrdeadrcells.
Thersun'srenergyrisrdeliveredrasrdiscreterpacketsrthatrtravelrasrwavesrandrarercalled
CorrectrAnswer:r Photons
Whatrisrarcharacteristicrofraerobicrrespiration?
CorrectrAnswer:r Therprocessrincludesrglycolysis,rtherKrebsrcycle,randrtherelectron
transportrchain.
Inrcompletingrproteinrsynthesisrinrarprokaryote,rwhatrbasicrmessagerisrcarriedrbyra
specializedrcodonrthatrhasrnorcorrespondingrtRNA?
CorrectrAnswer:r "Terminaterhere."
Microbialrdrugrresistancercanrbercausedrbyrmutationsrorrbyrintroductionrofrnewrgenes
intorarpopulation.rWhichrofrtherfollowingrcanronlyrbercausedrbyrtherintroductionrofrnew
genesrintorarpopulation?
CorrectrAnswer:r newrenzymesrthatrinactivatertherdrugrarersynthesized
Whyrdortherhands,rfeet,randrbreastsrhavermorerlymphaticrvesselsrforrhostrdefenserthan
otherrareasrofrtherhumanrbody?
CorrectrAnswer:r Theyrhaverarhighrriskrforrinfectionrduertorfrequentrcontact.
2
, Penicillinrfunctionsrasranrantimicrobialragentrbyrinhibitingrbacterial...
CorrectrAnswer:r cellrwallrsynthesis.
Whichrclassrofreukaryoticrmicroorganismsrcanrbersubdividedrintorgroupsrsuchras
Mastigophora,rSarcodina,rCiliophora,randrApicomplexa?
CorrectrAnswer:r Protozoa
Geneticrmaterialrcanrberexcisedrfromronerchromosomerandrdirectlyrintegratedrinto
anotherrvia...
CorrectrAnswer:r transposons
Whatrimmunercellrsecretesrnumerousrcytokinesrthatrhelprtorcoordinatertherresponserof
otherrimmunercells?
CorrectrAnswer:r THrcell
WhatrenzymesrarerusedrtoramplifyrDNArduringrPCR?
CorrectrAnswer:r DNArpolymerase
Whichrofrtherfollowingrisrarscientificrname?
CorrectrAnswer:r Streptococcusrpyogenes
3
