iology 8th edition by Hueth
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er, McCance Test Bank
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Chapteruy1.uyCellularuyBiology
MULTIPLE CHOICE uy
1. Auystudentuyisuyobservinguyauycelluyunderuytheuymicroscope.uyItuyisuyobserveduytouyhaveuysuperc
oileduyDNAuywithuyhistones.uyWhichuyofuytheuyfollowinguywoulduyalsouybeuyobserveduybyuytheuystud
ent?
a. Auysingleuycircularuychromosome
b. Auynucleus
c. Free-floatinguynuclearuymaterial
d. Nouyorganelles
ANS:uyB
Theuycelluydescribeduyisuyauyeukaryoticuycell,uysouyituyhasuyhistonesuyanduyauysupercoileduyDNAuy
withinuyitsuynucleus;uythus,uytheuynucleusuyshoulduybeuyobserved.
,Auysingleuycircularuychromosomeuyisuycharacteristicuyofuyprokaryoticuycells,uywhichuydouynotuyhaveuyhisto
nes.
Free-
floatinguynuclearuymaterialuydescribesuyauyprokaryoticuycell,uywhichuywoulduynotuyhaveuyauydistinctuyn
ucleus.
Eukaryoticuycellsuyhaveuymembraneuyboundeduycellularuycomponentsuycalleduyorganelles.uyNouyor
ganellesuydescribesuyauyprokaryoticuycell.
2. Auynurseuyisuyinstructinguytheuystaffuyaboutuycellularuyfunctions.uyWhichuycellularuyfunctionuyisuy
theuynurseuydescribinguywhenuyanuyisolateduycelluyabsorbsuyoxygenuyanduyusesuyituytouytransformuyn
utrientsuytouyenergy?
a. Metabolicuyabsorption
b. Communication
c. Secretion
d. Respiration
,ANS:uyD
Theuyabilityuyofuytheuycelluytouyabsorbuyoxygenuyrefersuytouytheuycellsuyfunctionuyofuyrespiration.
Theuyabilityuyofuytheuycelluytouyfunctionuywithinuyauysocietyuyofuycellsuyrefersuytouyitsuyf
unctionuyofucy ommunication.
Theuyabilityuyofuytheuycelluytouytakeuyinuynutrientsuyrefersuytouytheuycellsuyfunctionuyofuymetabolicuyabsorpti
on.
Theuyabilityuyofuytheuycelluytouysynthesizeuynewuysubstancesuyanduysecreteuytheseuyelsewhereuyrefersu
y touytheuycellsufy unctionuyofuysecretion.
3. AuyeukaryoticuycelluyisuyundergoinguyDNAuyreplication.uyInuywhichuyregionuyofuytheuycelluywoulduy
mostuyofuytheuygeneticuyinformationuybeuycontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:uyC
Theuyregionuyofuytheuycelluythatuycontainsuygeneticuymaterial,uyincludinguyauylargeuyamountuyofuyr
ibonucleicuyacid,uymostuyofuytheuyDNA,uyanduyDNA-bindinguyproteins,uyisuytheuynucleolus.
Theuymitochondriauyisuytheuysiteuyofuycellularuyrespiration.
, Theuyribosomesuyareuyinvolveduyinuymanufacturinguyofuyproteinsuywithinuytheuycell.
Theuynucleusuycontainsuytheuynucleolus,uyanduyituyisuytheuynucleolusuythatuycontainsuygeneticuymaterial.
4. Theuyfluiduymosaicuymodeluyforuybiologicuymembranesuydescribesuymembraneuybehavior.uyAcco
rdinguytouty hisuymodel,uywhichuyofuytheuyfollowinguyfloatuysinglyuyoruyasuyaggregatesuyinuytheuyfluiduylip
iduybilayer?
a. Peripheraluymembraneuyproteins
b. Integraluymembraneuyproteins