TEST BANK r
Microbiology An Evolving Science, 6th Edition,
r r r r r
r John Foster & Joan Slonczewski, All Chapter 1 - 28
r r r r r r r r r
,
,CHAPTER r1: rMicrobial rLife: rOrigin rand rDiscovery
MULTIPLE rCHOICE
1. Viruses rare:
a. infectious ragents rthat rinfect rmulti-cellular rorganisms
b. noncellular rparticles rthat rtake rover rthe rmetabolism rof ra rcell rto rgenerate
rmore rvirusrparticles
c. pathogens rthat rreplicate rin rcomplex rgrowth rmedia
d. cellular rparticles rthat rbelong rto rthe rarchaea rdomain
e. microbes rthat rconsist rof rlipid rmembrane renclosed rgenomes
ANS: r B DIF: Easy REF: r r r1.1 TOP: r I.A r| rI.B
MSC: r Remembering
2. Analysis rof rDNA rsequences rreveals:
a. the rancient rconvergence rof rtwo rcell rtypes, ri.e., rprokaryotes rand
reukaryotes
b. prokaryotes rand reukaryotes revolved rfrom ra rcommon rancestral rcell
c. that rbacteria rshare rcommon rancestor rwith rarchaea, rbut rnot rwith
reukarya
d. prokaryotes rare rcells rwith ra rnucleus
e. the rgenome rof rHaemophilus rinfluenzae rhas rabout r2 rbillion rbase
rpairs
ANS: r B DIF: Easy REF: r r r1.1 TOP: r I.A r| rI.B
MSC: r Remembering
3. Which rof rthese rgroups rare rconsidered rto rbe rmicrobes rbut rNOT rconsidered rto rbe rcells?
a. viruses d. protists
b. bacteria e. filamentous rfungi
c. archaea
ANS: r A DIF: Easy REF: r r r1.1 TOP: r I.A.i
MSC: r Remembering
4. A rmicrobe ris rcommonly rdefined ras:
a. a rvirus rthat rrequires ra rmicroscope rto rbe rseen
b. a rbacterium rthat rrequires ra rmicroscope rto rbe rseen
c. a rsingle-cellular rprokaryote rthat rrequires ra rmicroscope rto
rbe rseen
d. a rmulticellular reukaryote rthat rrequires ra rmicroscope rto rbe
rseen
e. a rliving rorganism rthat rrequires ra rmicroscope rto rbe rseen
ANS: r E DIF: Easy REF: r r r1.1 TOP: r I.A.i r| rI.A.ii
MSC: r Remembering
5. Which rone rof rthe rfollowing rstatements rregarding rmicrobial rcells ris rNOT rtrue?
a. Microbial rcells racquire rfood, rgain renergy rto rbuild rthemselves, rand
rrespond rto
environmental rchange.
, b. Most rsingle-celled rorganisms rrequire ra rmicroscope rto rrender rthem rvisible,
rbut rsome
bacterial rcells rare rlarge renough rto rbe rseen rwith rnaked reyes.
c. Microbes rfunction ras rindividual rentities.
d. Many rmicrobes rform rcomplex rmulticellular rassemblages.
e. Viruses rare rnot rconsidered ras rmicrobial rcells.
ANS: r C DIF: Easy REF: r r r1.1 TOP: r I.A.i r| rI.A.ii
MSC: r Remembering
6. Which rof rthe rfollowing rstatements ris rFALSE?
a. A rgenome ris rthe rtotal rgenetic rinformation rcontained rin ran rorganism’s
rchromosomal rDNA.
b. If ra rmicrobe’s rgenome rincludes rgenes rfor rnitrogenase, rthat rmicrobe rprobably
rcan rfixrnitrogen.
c. By rcomparing rDNA rsequences rof rdifferent rorganisms, rwe rcan rfigure rout rhow
rclosely
related rthey rare.
d. Fred rSanger rdeveloped rthe rfirst rapplicable rDNA rsequencing rmethod.
e. Fred rSanger rcompleted rthe rsequences rof rHaemophilus rinfluenzae.
ANS: r E DIF: Easy REF: r r r1.1 TOP: r I.B
MSC: r Remembering
7. The rfirst rcellular rgenomes rto rbe rsequenced rwere rthose rof:
a. humans d. prions
b. bacteria e. fungi
c. viruses
ANS: r B DIF: Easy REF: r r r1.1 TOP: r I.B.i
MSC: r Remembering
8. The renvironment rof rearly rEarth rmay rhave rcontained rall rof rthe rfollowing rEXCEPT:
a. ferrous riron d. oxygen
b. methane e. hydrogen rgas
c. ammonia
ANS: r D DIF: Easy REF: rSpecial rTopic
r1.1rTOP: r II.D MSC: r Remembering
9. The rdevelopment rof rthe rtheory rof rthe r―RNA rworld‖ rresulted rfrom rthe rdiscovery rof:
a. archaea d. ribozymes
b. prions e. endosymbionts
c. bacteria
ANS: r D DIF: Medium REF: rSpecial rTopic
r1.1rTOP: r II.D MSC: r Remembering
10. Which rmicrobes rmay rresemble rthose rof rthe rearliest rlife rforms?
a. archaea d. cyanobacteria
b. photosynthetic ralgae e. protists
c. viruses
ANS: r A DIF: Medium REF: rSpecial rTopic
r1.1rTOP: r II.D MSC: r Remembering
11. Early rmetabolism rmay rhave rbeen rcatalyzed rby:
a. DNA d. amino racids
b. RNA e. carbohydrates
Microbiology An Evolving Science, 6th Edition,
r r r r r
r John Foster & Joan Slonczewski, All Chapter 1 - 28
r r r r r r r r r
,
,CHAPTER r1: rMicrobial rLife: rOrigin rand rDiscovery
MULTIPLE rCHOICE
1. Viruses rare:
a. infectious ragents rthat rinfect rmulti-cellular rorganisms
b. noncellular rparticles rthat rtake rover rthe rmetabolism rof ra rcell rto rgenerate
rmore rvirusrparticles
c. pathogens rthat rreplicate rin rcomplex rgrowth rmedia
d. cellular rparticles rthat rbelong rto rthe rarchaea rdomain
e. microbes rthat rconsist rof rlipid rmembrane renclosed rgenomes
ANS: r B DIF: Easy REF: r r r1.1 TOP: r I.A r| rI.B
MSC: r Remembering
2. Analysis rof rDNA rsequences rreveals:
a. the rancient rconvergence rof rtwo rcell rtypes, ri.e., rprokaryotes rand
reukaryotes
b. prokaryotes rand reukaryotes revolved rfrom ra rcommon rancestral rcell
c. that rbacteria rshare rcommon rancestor rwith rarchaea, rbut rnot rwith
reukarya
d. prokaryotes rare rcells rwith ra rnucleus
e. the rgenome rof rHaemophilus rinfluenzae rhas rabout r2 rbillion rbase
rpairs
ANS: r B DIF: Easy REF: r r r1.1 TOP: r I.A r| rI.B
MSC: r Remembering
3. Which rof rthese rgroups rare rconsidered rto rbe rmicrobes rbut rNOT rconsidered rto rbe rcells?
a. viruses d. protists
b. bacteria e. filamentous rfungi
c. archaea
ANS: r A DIF: Easy REF: r r r1.1 TOP: r I.A.i
MSC: r Remembering
4. A rmicrobe ris rcommonly rdefined ras:
a. a rvirus rthat rrequires ra rmicroscope rto rbe rseen
b. a rbacterium rthat rrequires ra rmicroscope rto rbe rseen
c. a rsingle-cellular rprokaryote rthat rrequires ra rmicroscope rto
rbe rseen
d. a rmulticellular reukaryote rthat rrequires ra rmicroscope rto rbe
rseen
e. a rliving rorganism rthat rrequires ra rmicroscope rto rbe rseen
ANS: r E DIF: Easy REF: r r r1.1 TOP: r I.A.i r| rI.A.ii
MSC: r Remembering
5. Which rone rof rthe rfollowing rstatements rregarding rmicrobial rcells ris rNOT rtrue?
a. Microbial rcells racquire rfood, rgain renergy rto rbuild rthemselves, rand
rrespond rto
environmental rchange.
, b. Most rsingle-celled rorganisms rrequire ra rmicroscope rto rrender rthem rvisible,
rbut rsome
bacterial rcells rare rlarge renough rto rbe rseen rwith rnaked reyes.
c. Microbes rfunction ras rindividual rentities.
d. Many rmicrobes rform rcomplex rmulticellular rassemblages.
e. Viruses rare rnot rconsidered ras rmicrobial rcells.
ANS: r C DIF: Easy REF: r r r1.1 TOP: r I.A.i r| rI.A.ii
MSC: r Remembering
6. Which rof rthe rfollowing rstatements ris rFALSE?
a. A rgenome ris rthe rtotal rgenetic rinformation rcontained rin ran rorganism’s
rchromosomal rDNA.
b. If ra rmicrobe’s rgenome rincludes rgenes rfor rnitrogenase, rthat rmicrobe rprobably
rcan rfixrnitrogen.
c. By rcomparing rDNA rsequences rof rdifferent rorganisms, rwe rcan rfigure rout rhow
rclosely
related rthey rare.
d. Fred rSanger rdeveloped rthe rfirst rapplicable rDNA rsequencing rmethod.
e. Fred rSanger rcompleted rthe rsequences rof rHaemophilus rinfluenzae.
ANS: r E DIF: Easy REF: r r r1.1 TOP: r I.B
MSC: r Remembering
7. The rfirst rcellular rgenomes rto rbe rsequenced rwere rthose rof:
a. humans d. prions
b. bacteria e. fungi
c. viruses
ANS: r B DIF: Easy REF: r r r1.1 TOP: r I.B.i
MSC: r Remembering
8. The renvironment rof rearly rEarth rmay rhave rcontained rall rof rthe rfollowing rEXCEPT:
a. ferrous riron d. oxygen
b. methane e. hydrogen rgas
c. ammonia
ANS: r D DIF: Easy REF: rSpecial rTopic
r1.1rTOP: r II.D MSC: r Remembering
9. The rdevelopment rof rthe rtheory rof rthe r―RNA rworld‖ rresulted rfrom rthe rdiscovery rof:
a. archaea d. ribozymes
b. prions e. endosymbionts
c. bacteria
ANS: r D DIF: Medium REF: rSpecial rTopic
r1.1rTOP: r II.D MSC: r Remembering
10. Which rmicrobes rmay rresemble rthose rof rthe rearliest rlife rforms?
a. archaea d. cyanobacteria
b. photosynthetic ralgae e. protists
c. viruses
ANS: r A DIF: Medium REF: rSpecial rTopic
r1.1rTOP: r II.D MSC: r Remembering
11. Early rmetabolism rmay rhave rbeen rcatalyzed rby:
a. DNA d. amino racids
b. RNA e. carbohydrates
