Final exam latest latest latest
m m m m
-Thismdouble-
membranedm organellem containsmchromatinmandmismthemsitemwheremmostmgeneticminforma
tionmismstoredminmameukaryoticmcell.
a) nucleus
b) ribosome
c) Golgimapparatus
d) mitochondrion
e) endoplasmicmreticulumm (ER)
{{ANS}}a)mnucleus
-Ammoleculem withmthemchemicalmformulam C24H42O21mismprobablyma
a) protein
b) lipid
c) hydrocarbon
d) carbohydrate
e) nucleicmacid
{{ANS}}d)mcarbohydrate
-
Thesemorganellesm havemtheirmownmribosomesmandmtheirmownm"cell"mdivision,mwhichmismex
plainedmbymthemendosymbiontmtheorymthatmholdsmthatmthesemorganellesmweremoncemfree-
mlivingmbacterial mcellsmthatmcamemtomresideminmancientmeukaryoticmcells.
a) microbodiesmandm vacuoles
b) plastidsmandm microbodies
c) ERmandm Golgimapparatus
d) mitochondriamandmplastids
e) mitochondriamandmmicrobodies
{{ANS}}d)mmitochondriamandmplastids
-
Themsubstancem CH4mismheldmtogethermbymcovalentm bonds.mBasedmonmthemdefinitionsmuse
dminmthismcourse,mwhichmofmthemfollowingm ismtrue?
a) Itmismamcompoundm butmnotmammolecule.
b) Itm ismbothmamcompoundm andmammolecule.
c) Itmismammoleculem butmnotmamcompound.
d) Itmismamcompoundm unlessm itmismmixedmwithmH,mthenm itmbecomesmammolecule.
e) Itmismneithermamcompoundm normammolecule.
{{ANS}}b)mItmismbothmamcompoundm andm ammolecule.
-Whichmofmthem followingm ismNOTm amcharacteristicm ofmallmlifemasmwemknow mitmonmEarth?
a) abilitymformreproduction
b) havingmmitochondria
,c) abilitymtomcontrolmmetabolism
d) beingmcomposedm ofmcells
e) abilitymtomgrow mormdevelop
{{ANS}}b)mhavingmmitochondria
-Allmofmthem followingm arempartmofmamprokaryoticmcellmexcept
a) plasmammembrane
b) enzymes
c) DNA
d) endoplasmicmreticulum
e) ribosomes
{{ANS}}d)mendoplasmicmreticulum
-
Allmofmthemfollowingm aremcorrectmmatchesmofmthemlocationmofmamproteinmandmthemlocationm o
fmitsmsynthesism except
a) proteinmsecretedmfrommthem cellm -mroughm ER.
b) lysosomalmproteinm-mfreemcytoplasmicm ribosomes.
c) cytoplasmicmproteinsm-mfreemcytoplasmicmribosomes.
d) chloroplastm stromalmproteinm-mchloroplastmribosomes.
e) plasmammembranem proteinm-mroughmER.
{{ANS}}b)mlysosomalm proteinm-mfreemcytoplasmicmribosomes.
-Them twom aminomacidsmdepictedmabovembothmhavem Rmgroupsm thatmare:
a) chargedmandmhydrophilic
b) nonpolarmandmhydrophilic
c) polarmandmhydrophilic
d) chargedmandmhydrophobic
e) nonpolarmandmhydrophobic
{{ANS}}c)mpolarmandmhydrophilic
-
Humanmwhitembloodmcellsmaremgivenmradioactivelymlabeledmaminomacidsmthatmtheymwillminc
orporatemintomproteins.mThism"tagging"mofmnewlym synthesizedm proteinsmenablesmamresear
chermtomtrackmtheirmlocation.m Inmthismcase,mwemaremtrackingmanmenzymem thatmwillmbemusedm
formdigestionmwithinmthemcell,mandmthatmwillmrequiremanmenvironmentm withmlowermpH mthanmf
oundminmthemrestmofmthemcellmtomfunction.m Whatmismitsmmostmlikelympathwaymformthesemprote
insmfrommsynthesism tomfinalmdestination?
a) ERm®m Golgim®m lysosome
b) ERm®mlysosomesm ®mvesiclesmthatmfusem withmplasmammembrane
c) ERm®mGolgim®mvesiclesmthatmfusem withmplasmammembrane
d) nucleusm ®mERm®mGolgi
e) Golgim®m ERm®m lysosome
{{ANS}}a)m ER m®mGolgim ®mlysosome
,-
Themsmoothmregionsmofmthismwindingmmembranemnetworkm aremthemprimarymsitesmofmlipidms
ynthesism inmcells.
a) Golgimapparatus
b) endoplasmicmreticulumm (ER)
c) mitochondrion
d) nucleus
e) ribosome
{{ANS}}b)mendoplasmicmreticulumm (ER)
-
Amscientistmwantsmtominvestigatemtheminteriormofmbacterialmcells.mShemdecidesmtomusem70,
000xmmagnification,m andmwillmusemverymthinmslicesmofmthemcellmsamplesmembeddedminmpla
stic.mWhichminstrumentm wouldm bembestmsuitedmformhermstudies?
a) amscanningm lightmmicroscope
b) amcentrifuge
c) amscanningm electronmmicroscope
d) amtransmissionmlightmmicroscope
e) amtransmissionmelectronm microscope
{{ANS}}e)mamtransmissionmelectronmmicroscope
-Whichmmoleculem hasmamshadedmfunctional m groupmthatmismamcarboxylm group?
a) 1
b) 2
c) 3
d) 4
e) 5
{{ANS}}d)m4
-Whichmmoleculem hasmamshadedmfunctional m groupmthatmismweaklymbasic?
a) 1
b) 2
c) 3
d) 4
e) 6
{{ANS}}c)m3
-Whichmmoleculem hasmamshadedmfunctional m groupmthatmismnonpolar?
a) 1
b) 2
c) 3
d) 4
, e) 6
{{ANS}}b)m2
-Themtwommoleculesmshownmabovemprovidemanmexamplemof
a) radioactivemisotopes.
b) chemicalmisotopes.
c) cis-transmisomers.
d) structural m isomers.
e) enantiomers.
{{ANS}}c)mcis-transmisomers.
-Aboutm96%mofmlivingm mattermismmademupmofmwhichm fourm elements?
a) oxygen,m hydrogen,m calcium,msodium
b) carbon,moxygen,m hydrogen,m calcium
c) carbon,msodium,mchlorine,mnitrogen
d) carbon,mhydrogen,m nitrogen,m oxygen
e) carbon,msulfur,m phosphorus,m hydrogen
{{ANS}}d)mcarbon,mhydrogen,mnitrogen,moxygen
-
Thismproteinmismfoundm inmthemplasmammembranemofmanimalmcells.mItmtypicallym bindsmtompar
tsmofmthemextracellularm matrixmandmreceivesmsignalsmfrommthemextracellularm matrix.
a) integrin
b) dynein
c) fibronectin
d) actin
e) collagen
{{ANS}}a)mintegrin
-
Watermhasmammolecularm massmofm18mgmpermmole,mandmglucosemhasmammolecularmmassmof
m180mgmpermmole.mWhichmofmthemfollowing mwould mhavemapproximatelymonemglucosemmolec
ulemformeverymtenmwatermmolecules?
a) 180mgmofmwaterm andm 180mgmofmglucose
b) 18mgmofmwaterm andm 180mgmofmglucose
c) 180mgmofmwaterm andm 18mgmofmglucose
d) 180mgmofmwaterm andm1.8mgmofmglucose
e) 1.8mgmofmwatermandm180mgmofmglucose
{{ANS}}a)m 180mgmofmwaterm andm180mgmofmglucose
-
Accordingmtomthemrulesm formnormalmbasepairing,mwhichmofmthemfollowingmrepresentsmamcor
rectmDNA-DNAmbasepair?
a) G-G
m m m m
-Thismdouble-
membranedm organellem containsmchromatinmandmismthemsitemwheremmostmgeneticminforma
tionmismstoredminmameukaryoticmcell.
a) nucleus
b) ribosome
c) Golgimapparatus
d) mitochondrion
e) endoplasmicmreticulumm (ER)
{{ANS}}a)mnucleus
-Ammoleculem withmthemchemicalmformulam C24H42O21mismprobablyma
a) protein
b) lipid
c) hydrocarbon
d) carbohydrate
e) nucleicmacid
{{ANS}}d)mcarbohydrate
-
Thesemorganellesm havemtheirmownmribosomesmandmtheirmownm"cell"mdivision,mwhichmismex
plainedmbymthemendosymbiontmtheorymthatmholdsmthatmthesemorganellesmweremoncemfree-
mlivingmbacterial mcellsmthatmcamemtomresideminmancientmeukaryoticmcells.
a) microbodiesmandm vacuoles
b) plastidsmandm microbodies
c) ERmandm Golgimapparatus
d) mitochondriamandmplastids
e) mitochondriamandmmicrobodies
{{ANS}}d)mmitochondriamandmplastids
-
Themsubstancem CH4mismheldmtogethermbymcovalentm bonds.mBasedmonmthemdefinitionsmuse
dminmthismcourse,mwhichmofmthemfollowingm ismtrue?
a) Itmismamcompoundm butmnotmammolecule.
b) Itm ismbothmamcompoundm andmammolecule.
c) Itmismammoleculem butmnotmamcompound.
d) Itmismamcompoundm unlessm itmismmixedmwithmH,mthenm itmbecomesmammolecule.
e) Itmismneithermamcompoundm normammolecule.
{{ANS}}b)mItmismbothmamcompoundm andm ammolecule.
-Whichmofmthem followingm ismNOTm amcharacteristicm ofmallmlifemasmwemknow mitmonmEarth?
a) abilitymformreproduction
b) havingmmitochondria
,c) abilitymtomcontrolmmetabolism
d) beingmcomposedm ofmcells
e) abilitymtomgrow mormdevelop
{{ANS}}b)mhavingmmitochondria
-Allmofmthem followingm arempartmofmamprokaryoticmcellmexcept
a) plasmammembrane
b) enzymes
c) DNA
d) endoplasmicmreticulum
e) ribosomes
{{ANS}}d)mendoplasmicmreticulum
-
Allmofmthemfollowingm aremcorrectmmatchesmofmthemlocationmofmamproteinmandmthemlocationm o
fmitsmsynthesism except
a) proteinmsecretedmfrommthem cellm -mroughm ER.
b) lysosomalmproteinm-mfreemcytoplasmicm ribosomes.
c) cytoplasmicmproteinsm-mfreemcytoplasmicmribosomes.
d) chloroplastm stromalmproteinm-mchloroplastmribosomes.
e) plasmammembranem proteinm-mroughmER.
{{ANS}}b)mlysosomalm proteinm-mfreemcytoplasmicmribosomes.
-Them twom aminomacidsmdepictedmabovembothmhavem Rmgroupsm thatmare:
a) chargedmandmhydrophilic
b) nonpolarmandmhydrophilic
c) polarmandmhydrophilic
d) chargedmandmhydrophobic
e) nonpolarmandmhydrophobic
{{ANS}}c)mpolarmandmhydrophilic
-
Humanmwhitembloodmcellsmaremgivenmradioactivelymlabeledmaminomacidsmthatmtheymwillminc
orporatemintomproteins.mThism"tagging"mofmnewlym synthesizedm proteinsmenablesmamresear
chermtomtrackmtheirmlocation.m Inmthismcase,mwemaremtrackingmanmenzymem thatmwillmbemusedm
formdigestionmwithinmthemcell,mandmthatmwillmrequiremanmenvironmentm withmlowermpH mthanmf
oundminmthemrestmofmthemcellmtomfunction.m Whatmismitsmmostmlikelympathwaymformthesemprote
insmfrommsynthesism tomfinalmdestination?
a) ERm®m Golgim®m lysosome
b) ERm®mlysosomesm ®mvesiclesmthatmfusem withmplasmammembrane
c) ERm®mGolgim®mvesiclesmthatmfusem withmplasmammembrane
d) nucleusm ®mERm®mGolgi
e) Golgim®m ERm®m lysosome
{{ANS}}a)m ER m®mGolgim ®mlysosome
,-
Themsmoothmregionsmofmthismwindingmmembranemnetworkm aremthemprimarymsitesmofmlipidms
ynthesism inmcells.
a) Golgimapparatus
b) endoplasmicmreticulumm (ER)
c) mitochondrion
d) nucleus
e) ribosome
{{ANS}}b)mendoplasmicmreticulumm (ER)
-
Amscientistmwantsmtominvestigatemtheminteriormofmbacterialmcells.mShemdecidesmtomusem70,
000xmmagnification,m andmwillmusemverymthinmslicesmofmthemcellmsamplesmembeddedminmpla
stic.mWhichminstrumentm wouldm bembestmsuitedmformhermstudies?
a) amscanningm lightmmicroscope
b) amcentrifuge
c) amscanningm electronmmicroscope
d) amtransmissionmlightmmicroscope
e) amtransmissionmelectronm microscope
{{ANS}}e)mamtransmissionmelectronmmicroscope
-Whichmmoleculem hasmamshadedmfunctional m groupmthatmismamcarboxylm group?
a) 1
b) 2
c) 3
d) 4
e) 5
{{ANS}}d)m4
-Whichmmoleculem hasmamshadedmfunctional m groupmthatmismweaklymbasic?
a) 1
b) 2
c) 3
d) 4
e) 6
{{ANS}}c)m3
-Whichmmoleculem hasmamshadedmfunctional m groupmthatmismnonpolar?
a) 1
b) 2
c) 3
d) 4
, e) 6
{{ANS}}b)m2
-Themtwommoleculesmshownmabovemprovidemanmexamplemof
a) radioactivemisotopes.
b) chemicalmisotopes.
c) cis-transmisomers.
d) structural m isomers.
e) enantiomers.
{{ANS}}c)mcis-transmisomers.
-Aboutm96%mofmlivingm mattermismmademupmofmwhichm fourm elements?
a) oxygen,m hydrogen,m calcium,msodium
b) carbon,moxygen,m hydrogen,m calcium
c) carbon,msodium,mchlorine,mnitrogen
d) carbon,mhydrogen,m nitrogen,m oxygen
e) carbon,msulfur,m phosphorus,m hydrogen
{{ANS}}d)mcarbon,mhydrogen,mnitrogen,moxygen
-
Thismproteinmismfoundm inmthemplasmammembranemofmanimalmcells.mItmtypicallym bindsmtompar
tsmofmthemextracellularm matrixmandmreceivesmsignalsmfrommthemextracellularm matrix.
a) integrin
b) dynein
c) fibronectin
d) actin
e) collagen
{{ANS}}a)mintegrin
-
Watermhasmammolecularm massmofm18mgmpermmole,mandmglucosemhasmammolecularmmassmof
m180mgmpermmole.mWhichmofmthemfollowing mwould mhavemapproximatelymonemglucosemmolec
ulemformeverymtenmwatermmolecules?
a) 180mgmofmwaterm andm 180mgmofmglucose
b) 18mgmofmwaterm andm 180mgmofmglucose
c) 180mgmofmwaterm andm 18mgmofmglucose
d) 180mgmofmwaterm andm1.8mgmofmglucose
e) 1.8mgmofmwatermandm180mgmofmglucose
{{ANS}}a)m 180mgmofmwaterm andm180mgmofmglucose
-
Accordingmtomthemrulesm formnormalmbasepairing,mwhichmofmthemfollowingmrepresentsmamcor
rectmDNA-DNAmbasepair?
a) G-G
