Test Bank for Brock Biology of Microorganisms 15th Edition by Michael Madigan Kelly Bender Daniel Buckley W Sattle David Stahl All Chapters Complete Guide A+

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BrockgBiologygofgMicroorganisms,g15eg(Madigangetgal.)gCha
pterg2g MicrobialgCellgStructuregandgFunction

2.1 MultiplegChoicegQuestions

1) AngorganismgofgtheggenusgStaphylococcusgisg ,gwhilegangorganismgofgtheggenus
Spirochaetagisg .
A) sphericalg/grodgshaped
B) rodgshapedg/gcoiled
C) sphericalg/gcoiled
D) coiledg/gspherical
gAnswer:g C
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.1

2) BacteriagwithgtypegIVgpili
A) possessgtubulargorgstalk-likegextensionsgofgtheirgcells.
B) likelygexhibitgtwitchinggmotility.
C) havegcapsulesgthatgpromotegdehydration.
D) livegingaquaticgenvironments.
gAnswer:g B
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.7

3) Thegtermsg"run"gandg"tumble"gareggenerallygassociatedgwith
A) eukaryoticgcells.
B) nutrientgtransport.
C) chemotaxis.
D) clusteringgofgcertaingrod-
shapedgbacteria.gAnswer:g C
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.13

4) Thegmorphologygofgagcellginfluencesgits
A) motility.
B) metabolism.
C) surface-to-volumegratio.
D) motilitygandgsurface-to-
volumegratio.gAnswer:g D
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.1




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5) ComparedgtogEukaryotes,gBacteriagandgArchaeaghaveg gsurface-to-
volumegratios,gcausingg gnutrientgexchange.
A) lowerg/glower
B) lowerg/ghigher
C) higherg/glower
D) higherg/ghigher
gAnswer:g D
Bloom’sgTaxonomy:g 3-
4:gApplying/AnalyzinggChaptergSection:g 2.2

6) Thegcytoplasmicgmembranegcouldgbestgbegdescribedgas
A) angimpermeablegbarrier.
B) agpassivegconduitgforgintracellulargtransport.
C) aghighlygselectivegpermeabilitygbarrier.
D) agrigidgstructuregthatgprotectsgthegcell
.gAnswer:g C
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.3

7) ThegusegofgthegGramgstaingingmicrobiologygisgimportantgbecausegitgdifferentiates
A) BacteriagfromgArchaea.
B) prokaryoticgfromgeukaryoticgcells.
C) bacterialgcellsgwithgdifferentgtypesgofgcellgwalls.
D) archaealgcellsgwithgdifferentgtypesgofgmetabolism
.gAnswer:g C
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.4

8) Somegarchaeaghaveguniquegphospholipidsgingtheirgcytoplasmicgmembranegthat
A) formgagmonolayergduegtogthegpresencegofgdiglycerolgtetraethers.
B) formgagbilayergduegtogthegpresencegofgsterols.
C) formgagstablegringgstructuregduegtogthegpresencegofgcrenarchaeol.
D) formgagbilayergduegtogthegpresencegofgphosphatidylethanolamine
.gAnswer:g A
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.3

9) Transportgproteinsglocatedgingthegcytoplasmicgmembranegaregnecessarygwhen
A) diffusiongwillgnotgallowgadequategamountsgofgagsubstancegtogentergthegcell.
B) movementgintogthegcellgisgagainstgagconcentrationggradient.
C) theglevelgofgnutrientsgingnaturegisgveryglow.
D) nutrientgconcentrationgisgveryglowgingthegenvironment,gisghigherginsidegofgthegcell,gorgdiffusio
ngisgnotgpossible.
Answer:g D
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.3


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10) Cellsgmovegpolargmoleculesgacrossgthegcellgmembranegagainstgagconcentrationggradientgusing
A) energygandgtransportgproteins.
B) simplegdiffusion.
C) modificationsgtogmembraneglipids.
D) randomgmoleculargmovement.
gAnswer:g A
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.3

11) Youghavegdiscoveredgagnewgmicroorganismgandgwouldglikegtogclassifygitgasgageukaryotegorga
gprokaryote.gToginvestigategthisgquestiongyougpreparegagslidegwithgagsimplegstaingandgviewgitgwit
hgaglightgmicroscopegwithgag40Xgobjectiveglensgandg10Xgocularglens.gYougalsogpreparegagcontrol
gslidegusinggSaccharomycesgcerevisiaeg(agunicellulargeukaryote).gYougcangseegthegcellsgongyourg
controlgslide,gbutgyougdon'tgseegcellsgwhengyouglookgatgyourgunknowngmicroorganism.gWhatgcan
gyougconcludegfromgthisgexperiment?
A) Thegexperimentgfailedgtogvisualizegthegorganismgbecausegthegstaingkilledgit.
B) Yourgnewgunknowngmicroorganismgisgprobablygagvirus.
C) Thegcellsgofgthegnewgunknowngmicroorganismgmaygbegtoogsmallgtogseegwithgthegobjectivegan
dgocularglensesgyougused.
D) Thegnewgunknowngmicroorganismgisgprobablygangarchaeon
.gAnswer:g C
Bloom’sgTaxonomy:g 5-
6:gEvaluating/CreatinggChaptergSection:g 2.2

12) Bacteriagstaingasggram-positivegorggram-negativegbecausegofgdifferencesgingthegcell
A) wall.
B) cytoplasm.
C) nucleus.
D) chromosome.
gAnswer:g A
Bloom’sgTaxonomy:g 1-
2:gRemembering/UnderstandinggChaptergSection:g 2.4

13) Yougareggivengangelectrongmicrographgofgagbacterialgcell.gIngthegmicrographgyougcangclearlyg
seegthreegthinglayersgofgdifferentgdensitiesgsurroundinggthegcell.gBasedgongthegmicrograph,gyougca
nginfergthatgthisgcellgisg gandgwouldgappearg
gaftergapplicationgofgthegGramgstaingprocedure.
A) gram-positiveg/gpurple
B) gram-negativeg/gpink
C) gram-positiveg/gpink
D) gram-
negativeg/gpurplegAnswer:
gB
Bloom’sgTaxonomy:g 3-
4:gApplying/AnalyzinggChaptergSection:g 2.4



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