TEST BANK jt
Microbiology An Evolving Science, 6th Edition,
jt jt jt jt jt
jt John Foster & Joan Slonczewski, All Chapter 1 -
jt jt jt jt jt jt jt jt
jt 28
,
,CHAPTER 1: Microbial Life: Origin and Discovery
jt jt jt jt jt jt
MULTIPLE jtCHOICE
1. Viruses jtare:
a. infectious jtagents jtthat jtinfect jtmulti-cellular jtorganisms
b. noncellular jtparticles jtthat jttake jtover jtthe jtmetabolism jtof jta jtcell jtto
jtgenerate jtmore jtvirustjparticles
c. pathogens jtthat jtreplicate jtin jtcomplex jtgrowth jtmedia
d. cellular jtparticles jtthat jtbelong jtto jtthe jtarchaea jtdomain
e. microbes jtthat jtconsist jtof jtlipid jtmembrane jtenclosed jtgenomes
ANS: j t B DIF: Easy REF: jt jt jt1.1 TOP: j t I.A jt| jtI.B
MSC: j t Remembering
2. Analysis jtof jtDNA jtsequences jtreveals:
a. the jtancient jtconvergence jtof jttwo jtcell jttypes, jti.e., jtprokaryotes jtand
jteukaryotes
b. prokaryotes jtand jteukaryotes jtevolved jtfrom jta jtcommon jtancestral
jtcell
c. that jtbacteria jtshare jtcommon jtancestor jtwith jtarchaea, jtbut jtnot jtwith
jteukarya
d. prokaryotes jtare jtcells jtwith jta jtnucleus
e. the jtgenome jtof jtHaemophilus jtinfluenzae jthas jtabout jt2 jtbillion jtbase
jtpairs
ANS: j t B DIF: Easy REF: jt jt jt1.1 TOP: j t I.A jt| jtI.B
MSC: j t Remembering
3. Which jtof jtthese jtgroups jtare jtconsidered jtto jtbe jtmicrobes jtbut jtNOT jtconsidered jtto jtbe jtcells?
a. viruses d. protists
b. bacteria e. filamentous jtfungi
c. archaea
ANS: j t A DIF: Easy REF: jt jt jt1.1 TOP: j t I.A.i
MSC: j t Remembering
4. A jtmicrobe jtis jtcommonly jtdefined jtas:
a. a jtvirus jtthat jtrequires jta jtmicroscope jtto jtbe jtseen
b. a jtbacterium jtthat jtrequires jta jtmicroscope jtto jtbe jtseen
c. a jtsingle-cellular jtprokaryote jtthat jtrequires jta jtmicroscope
jtto jtbe jtseen
d. a jtmulticellular jteukaryote jtthat jtrequires jta jtmicroscope jtto
jtbe jtseen
e. a jtliving jtorganism jtthat jtrequires jta jtmicroscope jtto jtbe jtseen
ANS: j t E DIF: Easy REF: jt jt jt1.1 TOP: j t I.A.i jt| jtI.A.ii
MSC: j t Remembering
5. Which jtone jtof jtthe jtfollowing jtstatements jtregarding jtmicrobial jtcells jtis jtNOT jttrue?
a. Microbial jtcells jtacquire jtfood, jtgain jtenergy jtto jtbuild jtthemselves, jtand
jtrespond jtto
environmental jtchange.
, b. Most jtsingle-celled jtorganisms jtrequire jta jtmicroscope jtto jtrender jtthem
jtvisible, jtbut jtsome
bacterial jtcells jtare jtlarge jtenough jtto jtbe jtseen jtwith jtnaked jteyes.
c. Microbes jtfunction jtas jtindividual jtentities.
d. Many jtmicrobes jtform jtcomplex jtmulticellular jtassemblages.
e. Viruses jtare jtnot jtconsidered jtas jtmicrobial jtcells.
ANS: j t C DIF: Easy REF: jt jt jt1.1 TOP: j t I.A.i jt| jtI.A.ii
MSC: j t Remembering
6. Which jtof jtthe jtfollowing jtstatements jtis jtFALSE?
a. A jtgenome jtis jtthe jttotal jtgenetic jtinformation jtcontained jtin jtan jtorganism’s
jtchromosomal jtDNA.
b. If jta jtmicrobe’s jtgenome jtincludes jtgenes jtfor jtnitrogenase, jtthat jtmicrobe jtprobably
jtcan jtfixtjnitrogen.
c. By jtcomparing jtDNA jtsequences jtof jtdifferent jtorganisms, jtwe jtcan jtfigure jtout jthow
jtclosely
related jtthey jtare.
d. Fred jtSanger jtdeveloped jtthe jtfirst jtapplicable jtDNA jtsequencing jtmethod.
e. Fred jtSanger jtcompleted jtthe jtsequences jtof jtHaemophilus jtinfluenzae.
ANS: j t E DIF: Easy REF: jt jt jt1.1 TOP: j t I.B
MSC: j t Remembering
7. The jtfirst jtcellular jtgenomes jtto jtbe jtsequenced jtwere jtthose jtof:
a. humans d. prions
b. bacteria e. fungi
c. viruses
ANS: j t B DIF: Easy REF: jt jt jt1.1 TOP: j t I.B.i
MSC: j t Remembering
8. The jtenvironment jtof jtearly jtEarth jtmay jthave jtcontained jtall jtof jtthe jtfollowing jtEXCEPT:
a. ferrous jtiron d. oxygen
b. methane e. hydrogen jtgas
c. ammonia
ANS: j t D DIF: Easy REF: jtSpecial jtTopic
jt1.1tjTOP: j t II.D MSC: j t Remembering
9. The jtdevelopment jtof jtthe jttheory jtof jtthe jt―RNA jtworld‖ jtresulted jtfrom jtthe jtdiscovery jtof:
a. archaea d. ribozymes
b. prions e. endosymbionts
c. bacteria
ANS: j t D DIF: Medium REF: jtSpecial jtTopic
jt1.1tjTOP: j t II.D MSC: j t Remembering
10. Which jtmicrobes jtmay jtresemble jtthose jtof jtthe jtearliest jtlife jtforms?
a. archaea d. cyanobacteria
b. photosynthetic jtalgae e. protists
c. viruses
ANS: j t A DIF: Medium REF: jtSpecial jtTopic
jt1.1tjTOP: j t II.D MSC: j t Remembering
11. Early jtmetabolism jtmay jthave jtbeen jtcatalyzed jtby:
a. DNA d. amino jtacids
b. RNA e. carbohydrates
Microbiology An Evolving Science, 6th Edition,
jt jt jt jt jt
jt John Foster & Joan Slonczewski, All Chapter 1 -
jt jt jt jt jt jt jt jt
jt 28
,
,CHAPTER 1: Microbial Life: Origin and Discovery
jt jt jt jt jt jt
MULTIPLE jtCHOICE
1. Viruses jtare:
a. infectious jtagents jtthat jtinfect jtmulti-cellular jtorganisms
b. noncellular jtparticles jtthat jttake jtover jtthe jtmetabolism jtof jta jtcell jtto
jtgenerate jtmore jtvirustjparticles
c. pathogens jtthat jtreplicate jtin jtcomplex jtgrowth jtmedia
d. cellular jtparticles jtthat jtbelong jtto jtthe jtarchaea jtdomain
e. microbes jtthat jtconsist jtof jtlipid jtmembrane jtenclosed jtgenomes
ANS: j t B DIF: Easy REF: jt jt jt1.1 TOP: j t I.A jt| jtI.B
MSC: j t Remembering
2. Analysis jtof jtDNA jtsequences jtreveals:
a. the jtancient jtconvergence jtof jttwo jtcell jttypes, jti.e., jtprokaryotes jtand
jteukaryotes
b. prokaryotes jtand jteukaryotes jtevolved jtfrom jta jtcommon jtancestral
jtcell
c. that jtbacteria jtshare jtcommon jtancestor jtwith jtarchaea, jtbut jtnot jtwith
jteukarya
d. prokaryotes jtare jtcells jtwith jta jtnucleus
e. the jtgenome jtof jtHaemophilus jtinfluenzae jthas jtabout jt2 jtbillion jtbase
jtpairs
ANS: j t B DIF: Easy REF: jt jt jt1.1 TOP: j t I.A jt| jtI.B
MSC: j t Remembering
3. Which jtof jtthese jtgroups jtare jtconsidered jtto jtbe jtmicrobes jtbut jtNOT jtconsidered jtto jtbe jtcells?
a. viruses d. protists
b. bacteria e. filamentous jtfungi
c. archaea
ANS: j t A DIF: Easy REF: jt jt jt1.1 TOP: j t I.A.i
MSC: j t Remembering
4. A jtmicrobe jtis jtcommonly jtdefined jtas:
a. a jtvirus jtthat jtrequires jta jtmicroscope jtto jtbe jtseen
b. a jtbacterium jtthat jtrequires jta jtmicroscope jtto jtbe jtseen
c. a jtsingle-cellular jtprokaryote jtthat jtrequires jta jtmicroscope
jtto jtbe jtseen
d. a jtmulticellular jteukaryote jtthat jtrequires jta jtmicroscope jtto
jtbe jtseen
e. a jtliving jtorganism jtthat jtrequires jta jtmicroscope jtto jtbe jtseen
ANS: j t E DIF: Easy REF: jt jt jt1.1 TOP: j t I.A.i jt| jtI.A.ii
MSC: j t Remembering
5. Which jtone jtof jtthe jtfollowing jtstatements jtregarding jtmicrobial jtcells jtis jtNOT jttrue?
a. Microbial jtcells jtacquire jtfood, jtgain jtenergy jtto jtbuild jtthemselves, jtand
jtrespond jtto
environmental jtchange.
, b. Most jtsingle-celled jtorganisms jtrequire jta jtmicroscope jtto jtrender jtthem
jtvisible, jtbut jtsome
bacterial jtcells jtare jtlarge jtenough jtto jtbe jtseen jtwith jtnaked jteyes.
c. Microbes jtfunction jtas jtindividual jtentities.
d. Many jtmicrobes jtform jtcomplex jtmulticellular jtassemblages.
e. Viruses jtare jtnot jtconsidered jtas jtmicrobial jtcells.
ANS: j t C DIF: Easy REF: jt jt jt1.1 TOP: j t I.A.i jt| jtI.A.ii
MSC: j t Remembering
6. Which jtof jtthe jtfollowing jtstatements jtis jtFALSE?
a. A jtgenome jtis jtthe jttotal jtgenetic jtinformation jtcontained jtin jtan jtorganism’s
jtchromosomal jtDNA.
b. If jta jtmicrobe’s jtgenome jtincludes jtgenes jtfor jtnitrogenase, jtthat jtmicrobe jtprobably
jtcan jtfixtjnitrogen.
c. By jtcomparing jtDNA jtsequences jtof jtdifferent jtorganisms, jtwe jtcan jtfigure jtout jthow
jtclosely
related jtthey jtare.
d. Fred jtSanger jtdeveloped jtthe jtfirst jtapplicable jtDNA jtsequencing jtmethod.
e. Fred jtSanger jtcompleted jtthe jtsequences jtof jtHaemophilus jtinfluenzae.
ANS: j t E DIF: Easy REF: jt jt jt1.1 TOP: j t I.B
MSC: j t Remembering
7. The jtfirst jtcellular jtgenomes jtto jtbe jtsequenced jtwere jtthose jtof:
a. humans d. prions
b. bacteria e. fungi
c. viruses
ANS: j t B DIF: Easy REF: jt jt jt1.1 TOP: j t I.B.i
MSC: j t Remembering
8. The jtenvironment jtof jtearly jtEarth jtmay jthave jtcontained jtall jtof jtthe jtfollowing jtEXCEPT:
a. ferrous jtiron d. oxygen
b. methane e. hydrogen jtgas
c. ammonia
ANS: j t D DIF: Easy REF: jtSpecial jtTopic
jt1.1tjTOP: j t II.D MSC: j t Remembering
9. The jtdevelopment jtof jtthe jttheory jtof jtthe jt―RNA jtworld‖ jtresulted jtfrom jtthe jtdiscovery jtof:
a. archaea d. ribozymes
b. prions e. endosymbionts
c. bacteria
ANS: j t D DIF: Medium REF: jtSpecial jtTopic
jt1.1tjTOP: j t II.D MSC: j t Remembering
10. Which jtmicrobes jtmay jtresemble jtthose jtof jtthe jtearliest jtlife jtforms?
a. archaea d. cyanobacteria
b. photosynthetic jtalgae e. protists
c. viruses
ANS: j t A DIF: Medium REF: jtSpecial jtTopic
jt1.1tjTOP: j t II.D MSC: j t Remembering
11. Early jtmetabolism jtmay jthave jtbeen jtcatalyzed jtby:
a. DNA d. amino jtacids
b. RNA e. carbohydrates
