BIL 150 WITH CORRECT ANSWERS
2026
plasmodesmavinvplantvcellsvarevmostvsimilarvinvfunctionvtovwhichvofvthevfollowingvstructuresvinva
ni malvcells?ggapvjunctions
ofvthevfollowingvwhatvisvthevmostvlikelyvpathwayvtakenvbyvavnewlyvsynthesizedvproteinvthatvwillv
bev secretedvbyvanvanimalvcell?g
ERv>vGolgiv>vvesiclesvthatvfusevwithvavcell'svplasmavmembrane
whichvofvthevfollowingvprocessesvwouldvlikelyvincludevallvothervprocesses?vgvpassivevtransport
whichvofvthevfollowingvfactorsvwouldvmostvlikelyvleadvtovincreasevmembranevfluidity?v-
vcorrectanswersv-avgreatervproportionvofvunsaturatedvphospholipids
youvarevworkingvonvavteamvthatvisvdesigningvavnewvdrug.vInvordervforvthisvdrugvtovwork,vitvmust
vent
ervthevcytoplasmvofvspecificvtargetvcells.vWhichvofvthevfollowingvwouldvbevavfactorvthatvmightvbe
stv determinevwhethervyourvmoleculevcouldvselectivelyventervintovthesevtargetvcells?v-
vcorrectanswersv-avhighvhydrophobicityvofvthevdrugvmolecule
, avpatientvhasvhadvavseriousvaccidentvandvlostvavlotvofvblood.vInvanvattemptvtovreplenishvbodyvflu
ids,v
anvequalvvolumevofvdistilledvwatervtovthevamountvofvbloodvlossvisvtransferredvdirectlyvintovonevo
fvh
ervveins.vWhatvwillvbevthevmostvprobable?vgvthevpatient'svredvbloodvcellsvwillvswellvbecausevthev
bloodvfluidvhasvbecomevhypotonicvcomparedvt ovthevcells
whichvofvthevfollowingvmembranevactivitiesvrequiresvenergyvfromvATPvhydrolysis?v-
vcorrectanswersv-Na+vionsvmovingvoutvofvthevmammalianvcell
watervpassesvquicklyvthroughvmembranesvbecause?vgvitvmovesvthroughvaquaporinvproteinsvinvthe
vmembrane
whichvofvthevfollowingvisvavcharacteristicvfeaturevofvavcarriervproteinvinvavcellvmembrane?v-
vcorrectanswersv-itvexhibitsvavspecificityvforvavparticularvtypevofvmolecule
cellvmembranesvarevstructurallyvasymmetrical.vWhichvofvthevfollowingvmayvbevavmostvlikelyvexpla
n
ationvforvthisvasymmetry?vgvthevtwovsidesvofvavcellvmembranevfacevdifferentvenvironmentsvandv
mayvcarryvoutvdifferentvfunctio nsvonveachvside
accordingvtovthevfluidvmosaicvmodelvofvcellvmembranes,vwhichvofvthevfollowingvisvavcorrectvstate
m
entvaboutvthevcellvmembranevphospholipids?vgvtheyvmayvmovevlaterallyvalongvthevplanevofvthev
membrane
ifvavpharmaceuticalvcompanyvwishesvtovdesignvavdrugvtovblockvthevinteractionvbetweenvavGprotei
nvreceptorvandvanvintracellularvGprotein,vthenvtheirvdrugvshouldvbestvblockvwhichvofvthevfollowin
g?vgvthevbindingvsitevofvthevG-proteinvcoupledvreceptorvforvthevG-protein
invresearchvonvagingv(bothvcellularvagingvandvorganismalvaging),vitvhasvbeenvfoundvthatvagedvcell
sv
2026
plasmodesmavinvplantvcellsvarevmostvsimilarvinvfunctionvtovwhichvofvthevfollowingvstructuresvinva
ni malvcells?ggapvjunctions
ofvthevfollowingvwhatvisvthevmostvlikelyvpathwayvtakenvbyvavnewlyvsynthesizedvproteinvthatvwillv
bev secretedvbyvanvanimalvcell?g
ERv>vGolgiv>vvesiclesvthatvfusevwithvavcell'svplasmavmembrane
whichvofvthevfollowingvprocessesvwouldvlikelyvincludevallvothervprocesses?vgvpassivevtransport
whichvofvthevfollowingvfactorsvwouldvmostvlikelyvleadvtovincreasevmembranevfluidity?v-
vcorrectanswersv-avgreatervproportionvofvunsaturatedvphospholipids
youvarevworkingvonvavteamvthatvisvdesigningvavnewvdrug.vInvordervforvthisvdrugvtovwork,vitvmust
vent
ervthevcytoplasmvofvspecificvtargetvcells.vWhichvofvthevfollowingvwouldvbevavfactorvthatvmightvbe
stv determinevwhethervyourvmoleculevcouldvselectivelyventervintovthesevtargetvcells?v-
vcorrectanswersv-avhighvhydrophobicityvofvthevdrugvmolecule
, avpatientvhasvhadvavseriousvaccidentvandvlostvavlotvofvblood.vInvanvattemptvtovreplenishvbodyvflu
ids,v
anvequalvvolumevofvdistilledvwatervtovthevamountvofvbloodvlossvisvtransferredvdirectlyvintovonevo
fvh
ervveins.vWhatvwillvbevthevmostvprobable?vgvthevpatient'svredvbloodvcellsvwillvswellvbecausevthev
bloodvfluidvhasvbecomevhypotonicvcomparedvt ovthevcells
whichvofvthevfollowingvmembranevactivitiesvrequiresvenergyvfromvATPvhydrolysis?v-
vcorrectanswersv-Na+vionsvmovingvoutvofvthevmammalianvcell
watervpassesvquicklyvthroughvmembranesvbecause?vgvitvmovesvthroughvaquaporinvproteinsvinvthe
vmembrane
whichvofvthevfollowingvisvavcharacteristicvfeaturevofvavcarriervproteinvinvavcellvmembrane?v-
vcorrectanswersv-itvexhibitsvavspecificityvforvavparticularvtypevofvmolecule
cellvmembranesvarevstructurallyvasymmetrical.vWhichvofvthevfollowingvmayvbevavmostvlikelyvexpla
n
ationvforvthisvasymmetry?vgvthevtwovsidesvofvavcellvmembranevfacevdifferentvenvironmentsvandv
mayvcarryvoutvdifferentvfunctio nsvonveachvside
accordingvtovthevfluidvmosaicvmodelvofvcellvmembranes,vwhichvofvthevfollowingvisvavcorrectvstate
m
entvaboutvthevcellvmembranevphospholipids?vgvtheyvmayvmovevlaterallyvalongvthevplanevofvthev
membrane
ifvavpharmaceuticalvcompanyvwishesvtovdesignvavdrugvtovblockvthevinteractionvbetweenvavGprotei
nvreceptorvandvanvintracellularvGprotein,vthenvtheirvdrugvshouldvbestvblockvwhichvofvthevfollowin
g?vgvthevbindingvsitevofvthevG-proteinvcoupledvreceptorvforvthevG-protein
invresearchvonvagingv(bothvcellularvagingvandvorganismalvaging),vitvhasvbeenvfoundvthatvagedvcell
sv
