Microbiology An Evolving Science, 5th Edition,
John Foster & Joan Slonczewski, All Chapter 1 - 28
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,CHAPTERu1:uMicrobialuLife:uOriginuanduDiscovery
MULTIPLEuCHOICE
1. Virusesuare:
a. infectiousuagentsuthatuinfectumulti-cellularuorganisms
b. noncellularuparticlesuthatutakeuoverutheumetabolismuofuaucellutougenerateumoreuvirusupar
ticles
c. pathogensuthatureplicateuinucomplexugrowthumedia
d. cellularuparticlesuthatubelongutoutheuarchaeaudomain
e. microbesuthatuconsistuofulipidumembraneuenclosedugenomes
ANS:u B DIF: Easy REF:uuu1.1 TOP:u I.Au|uI.B
MSC:u Remembering
2. AnalysisuofuDNAusequencesureveals:
a. theuancientuconvergenceuofutwoucellutypes,ui.e.,uprokaryotesuandueukaryotes
b. prokaryotesuandueukaryotesuevolvedufromuaucommonuancestralucell
c. thatubacteriaushareucommonuancestoruwithuarchaea,ubutunotuwithueukarya
d. prokaryotesuareucellsuwithuaunucleus
e. theugenomeuofuHaemophilusuinfluenzaeuhasuaboutu2ubillionubaseupairs
ANS:u B DIF: Easy REF:uuu1.1 TOP:u I.Au|uI.B
MSC:u Remembering
3. WhichuofutheseugroupsuareuconsideredutoubeumicrobesubutuNOTuconsideredutoubeucells?
a. viruses d. protists
b. bacteria e. filamentousufungi
c. archaea
ANS:u A DIF: Easy REF:uuu1.1 TOP:u I.A.i
MSC:u Remembering
4. Aumicrobeuisucommonlyudefineduas:
a. auvirusuthaturequiresuaumicroscopeutoubeuseen
b. aubacteriumuthaturequiresuaumicroscopeutoubeuseen
c. ausingle-cellularuprokaryoteuthaturequiresuaumicroscopeutoubeuseen
d. aumulticellularueukaryoteuthaturequiresuaumicroscopeutoubeuseen
e. aulivinguorganismuthaturequiresuaumicroscopeutoubeuseen
ANS:u E DIF: Easy REF:uuu1.1 TOP:u I.A.iu|uI.A.ii
MSC:u Remembering
5. WhichuoneuofutheufollowingustatementsuregardingumicrobialucellsuisuNOTutrue?
a. Microbialucellsuacquireufood,ugainuenergyutoubuilduthemselves,uanduresponduto
environmentaluchange.
, b. Mostusingle-celleduorganismsurequireuaumicroscopeutourenderuthemuvisible,ubutusome
bacterialucellsuareulargeuenoughutoubeuseenuwithunakedueyes.
c. Microbesufunctionuasuindividualuentities.
d. Manyumicrobesuformucomplexumulticellularuassemblages.
e. Virusesuareunotuconsidereduasumicrobialucells.
ANS:u C DIF: Easy REF:uuu1.1 TOP:u I.A.iu|uI.A.ii
MSC:u Remembering
6. WhichuofutheufollowingustatementsuisuFALSE?
a. Augenomeuisutheutotalugeneticuinformationucontaineduinuanuorganism’suchromosomaluDNA.
b. Ifuaumicrobe’sugenomeuincludesugenesuforunitrogenase,uthatumicrobeuprobablyucanufixunitrogen.
c. ByucomparinguDNAusequencesuofudifferentuorganisms,uweucanufigureuoutuhowuclosely
relatedutheyuare.
d. FreduSangerudevelopedutheufirstuapplicableuDNAusequencingumethod.
e. FreduSangerucompletedutheusequencesuofuHaemophilusuinfluenzae.
ANS:u E DIF: Easy REF:uuu1.1 TOP:u I.B
MSC:u Remembering
7. Theufirstucellularugenomesutoubeusequenceduwereuthoseuof:
a. humans d. prions
b. bacteria e. fungi
c. viruses
ANS:u B DIF: Easy REF:uuu1.1 TOP:u I.B.i
MSC:u Remembering
8. TheuenvironmentuofuearlyuEarthumayuhaveucontainedualluofutheufollowinguEXCEPT:
a. ferrousuiron d. oxygen
b. methane e. hydrogenugas
c. ammonia
ANS:u D DIF: Easy
REF:uSpecialuTopicu1.1uTOP:u II.D
MSC:u Remembering
9. Theudevelopmentuofutheutheoryuofutheu―RNAuworld‖uresultedufromutheudiscoveryuof:
a. archaea d. ribozymes
b. prions e. endosymbionts
c. bacteria
ANS:u D DIF: Medium
REF:uSpecialuTopicu1.1uTOP:u II.D
MSC:u Remembering
10. Whichumicrobesumayuresembleuthoseuofutheuearliestulifeuforms?
a. archaea d. cyanobacteria
b. photosyntheticualgae e. protists
c. viruses
ANS:u A DIF: Medium
REF:uSpecialuTopicu1.1uTOP:u II.D
MSC:u Remembering
11. Earlyumetabolismumayuhaveubeenucatalyzeduby:
a. DNA d. aminouacids
b. RNA e. carbohydrates