NURSfb1210fbWeekfb2fb-fbPlasmafbMembrane
Plasmafbmembranefb-fbcorrectfbanswer✔ ✔ Afbselectively-
permeablefbphospholipidfbbilayerfbformingfbthefbboundaryfboffbthefbcells
Howfbdofbphospholipidsfbarrangefbthemselves?fb-fbcorrectfbanswer✔ ✔
Hydrophilicfbheadsfborientfbtowardsfbwaterfbwhilefbhydrophobicfbtailsfbface
fbawayfbfromfbwaterfbandfbtowardsfblipids
Whatfbdoesfbthefbphospholipidfbbilayerfbcontain?fb-fbcorrectfbanswer✔ ✔
phospholipids,fbglycolipids,fbcholesterol
howfbdofbphospholipidsfbmove?fb-fbcorrectfbanswer✔ ✔ sidefbtofbside
FluidfbMosaicfbmodelfb-fbcorrectfbanswer✔ ✔
modelfbthatfbdescribesfbthefbarrangementfbandfbmovementfboffbthefbmolecul
esfbthatfbmakefbupfbafbcellfbmembrane
Whatfbdoesfbcholesterolfbdofbinfbthefbplasmafbmembrane?fb-fbcorrectfbanswer
✔ ✔ Itfbreducesfbfluidityfboffbthefbmembranefbandfbincreasesfbitsfbstability
1.fbItfbdisruptsfbthefbregularfbpackingfboffbhydrocarbonfbtailsfbwhichfbrestrictsfb
molecularfbmotionfbandfbthereforefbfluidity
2.fbreducesfbpermeabilityfboffbhydrophilicfbparticles
, Whatfbdofbglycolipidsfbdofbinfbthefbplasmafbmembrane?fb-fbcorrectfbanswer✔
✔
helpfbthefbcellfbtofbrecognizefbotherfbcellsfboffbthefborganism,fbcontributesfbtof
bglycocalyx
Glycocalyxfb-fbcorrectfbanswer✔ ✔
Thefbexternalfbsurfacefboffbafbplasmafbmembranefbthatfbisfbimportantfbforfbcel
l-to-cellfbcommunication,fbhelpsfbcellsfbstickfbtogether
Glycoproteinfb-fbcorrectfbanswer✔ ✔
shortfbsugarfbchainsfbattachedfbtofbproteins
Ionfbchannelfbproteinfb-fbcorrectfbanswer✔ ✔
channelfbproteinsfbthatfbtransportfbions,fbsomefbusefbATP.fbIntegral.
transportersfbproteinfb-fbcorrectfbanswer✔ ✔
carrierfbandfbpassagefbproteinsfbforfbglucosefbandfbaminofbacids,fbchangesfbs
hapefbtofbdofbso.fbIntegral.
Cell-cellfbrecognitionfbproteinsfb-fbcorrectfbanswer✔ ✔
Glycoproteinfbthatfbdistinguishesfbcellsfbfromfbitself,fbandfbisfbanfbIDfbtagfbfo
rfbotherfbcells.
Plasmafbmembranefb-fbcorrectfbanswer✔ ✔ Afbselectively-
permeablefbphospholipidfbbilayerfbformingfbthefbboundaryfboffbthefbcells
Howfbdofbphospholipidsfbarrangefbthemselves?fb-fbcorrectfbanswer✔ ✔
Hydrophilicfbheadsfborientfbtowardsfbwaterfbwhilefbhydrophobicfbtailsfbface
fbawayfbfromfbwaterfbandfbtowardsfblipids
Whatfbdoesfbthefbphospholipidfbbilayerfbcontain?fb-fbcorrectfbanswer✔ ✔
phospholipids,fbglycolipids,fbcholesterol
howfbdofbphospholipidsfbmove?fb-fbcorrectfbanswer✔ ✔ sidefbtofbside
FluidfbMosaicfbmodelfb-fbcorrectfbanswer✔ ✔
modelfbthatfbdescribesfbthefbarrangementfbandfbmovementfboffbthefbmolecul
esfbthatfbmakefbupfbafbcellfbmembrane
Whatfbdoesfbcholesterolfbdofbinfbthefbplasmafbmembrane?fb-fbcorrectfbanswer
✔ ✔ Itfbreducesfbfluidityfboffbthefbmembranefbandfbincreasesfbitsfbstability
1.fbItfbdisruptsfbthefbregularfbpackingfboffbhydrocarbonfbtailsfbwhichfbrestrictsfb
molecularfbmotionfbandfbthereforefbfluidity
2.fbreducesfbpermeabilityfboffbhydrophilicfbparticles
, Whatfbdofbglycolipidsfbdofbinfbthefbplasmafbmembrane?fb-fbcorrectfbanswer✔
✔
helpfbthefbcellfbtofbrecognizefbotherfbcellsfboffbthefborganism,fbcontributesfbtof
bglycocalyx
Glycocalyxfb-fbcorrectfbanswer✔ ✔
Thefbexternalfbsurfacefboffbafbplasmafbmembranefbthatfbisfbimportantfbforfbcel
l-to-cellfbcommunication,fbhelpsfbcellsfbstickfbtogether
Glycoproteinfb-fbcorrectfbanswer✔ ✔
shortfbsugarfbchainsfbattachedfbtofbproteins
Ionfbchannelfbproteinfb-fbcorrectfbanswer✔ ✔
channelfbproteinsfbthatfbtransportfbions,fbsomefbusefbATP.fbIntegral.
transportersfbproteinfb-fbcorrectfbanswer✔ ✔
carrierfbandfbpassagefbproteinsfbforfbglucosefbandfbaminofbacids,fbchangesfbs
hapefbtofbdofbso.fbIntegral.
Cell-cellfbrecognitionfbproteinsfb-fbcorrectfbanswer✔ ✔
Glycoproteinfbthatfbdistinguishesfbcellsfbfromfbitself,fbandfbisfbanfbIDfbtagfbfo
rfbotherfbcells.
