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Exam (elaborations)

Final exam straighterline microbiology

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Final exam straighterline microbiology

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Uploaded on
January 30, 2025
Number of pages
30
Written in
2024/2025
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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




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