Cell Biology Exam 1 Practice Test Questions with correct answers 2026

Cell Biology Exam 1 Practice Test
Questions with correct answers 2026
Endosomesb-bCORRECTbANSWERSb-Sortingbofbendocytosedbmaterial



Membrane-boundborganellesb-bCORRECTbANSWERSb-Ifbabcellbdoesbnotbhavebabmembrane-
boundbnucleus,bitbisbalsobnotblikelybtobhave



Cellbmembraneb-bCORRECTbANSWERSb-
Whichbofbthebfollowingbstructuresbisbcharacteristicbofbbothbeukaryoticbandbprokaryoticbcells?



Endocyticbpathwayb-bCORRECTbANSWERSb-
Alongbwhichbpathwaybdobmaterialsborbthebplasmabmembranebmovebintobthebcellbfrombtheboutside
btobcytoplasmic



compartments?



Vesiclesb-bCORRECTbANSWERSb-
ThebproductsbofbthebendoplasmicbreticulumbarebtransportedbtobthebGolgibapparatusbby?



Mitochondriab-bCORRECTbANSWERSb-
Musclebcellsbrequirebmorebenergybinborderbtobfunctionbthanbmostbotherbcells.bTherefore,bmusclebc
ellsbwouldbbe

expectedbtobhavebmoreb________bthanbmostbotherbcells.



Ciliab-bCORRECTbANSWERSb-
Whichbofbthebfollowingbwouldbmostblikelybbebassociatedbwithbthebsurfacebofbcellsbandbprovidebabbr
ushingbmotion,

therebybmovingbmaterialsboverbthebsurfacebofbthebcells?

, Thebtwobtypesbofbtetramersbassociatebtobformbanboctamerb-bCORRECTbANSWERSb-
Studiesbofbnucleosomesbhavebshownbthatbhistonesb(exceptbH1)bexistbinbeachbnucleosomebasbtwobk
indsbof

tetramers:bonebofb2bH2Abmoleculesbandb2bH2Bbmolecules,bandbthebotherbasb2bH3bandb2bH4bmolecu
les.bWhichbof

thebfollowingbisbsupportedbbybthisbdata?



Thatbthebcriticalbfunctionbofbtelomeresbmustbbebmaintainedb-bCORRECTbANSWERSb-
ThebDNAbofbtelomeresbhasbbeenbfoundbtobbebhighlybconservedbthroughoutbthebevolutionbofbeukar
yotes.bWhat

doesbthisbmostbprobablybreflect?



FunctionsbofbMicrofilamentsb-bCORRECTbANSWERSb-
Musclebcontraction,bcellbdivision,bmaintenancebofbcellularbshapebinbanimalbcells,bAmoeboidbmove
ment,bCytoplasmicbstreaming



Nucleosome,b30-nmbchromatinbfiber,bloopedbdomainb-bCORRECTbANSWERSb-
Whichbofbthebfollowingbrepresentsbtheborderbofbincreasinglybhigherblevelsbofborganizationbofbchro
matinb(30-nmbchromatinbfiber,bLoopedbdomain,bNucleosome)b?



Additionbofbtubulinbsubunitsbtobeachbendb-bCORRECTbANSWERSb-
Elongationbofbthebmicrotubuleboccursbbybthe?



Centrosomeb-bCORRECTbANSWERSb-Thebminusb(-
)bendsbofbmicrotubulesbareboftenbanchoredbatbtheb________________b,bsuchbthatbthebdynamics

associatedbwithbmicrotubulesbisbatbthebplusb(+)bends.



RolebofbMicrofilamentsb-bCORRECTbANSWERSb-Musclebcellbcontraction,b,b,bCellbmigration.