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Final Exam: BSC2085/ BSC 2085 (Latest 2024/ 2025 Update) Anatomy and Physiology I | Complete Guide | Qs & As| 100% Correct| Grade A (Verified Answers) $10.99   Add to cart
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Final Exam: BSC2085/ BSC 2085 (Latest 2024/ 2025 Update) Anatomy and Physiology I | Complete Guide | Qs & As| 100% Correct| Grade A (Verified Answers)
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Final Exam: BSC2085/ BSC 2085 (Latest 2024/ 2025 Update) Anatomy and Physiology I | Complete Guide | Qs & As| 100% Correct| Grade A (Verified Answers) Q: Four General Functions of the Plasma Membrane Answer: 1. Physical Isolation 2. Regulation of Exchange with the Environment 3. Sensitiv...

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  • October 15, 2024
  • 58
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • bsc2085
  • bsc2085bsc 2085bsc2085 bsc 2085 exam
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  • bsc2085bsc 2085bsc2085 bsc 2085 exam 2
  • bsc2085bsc 2085bsc2085 bsc 2085 exam 3
  • bsc2085bsc 2085bsc2085 bsc 2085 exam 4

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FinallExam:lBSC2085/lBSCl2085l(Latestl
2024/l2025lUpdate)lAnatomylandlPhysiology
lIl|lCompletelGuidel|lQsl&lAs|l100%lCorrect
|lGradelAl(VerifiedlAnswers)

Q:lFourlGenerallFunctionsloflthelPlasmalMembrane
Answer:
1.lPhysicallIsolation
2.lRegulationloflExchangelwithlthelEnvironment
3.lSensitivityltolthelEnvironment
4.lStructurallSupport

Q:lPlasmalmembranelcomposedlof...
Answer:
1.lMembranelLipids
2.lMembranelProteins
3.lMembranelCarbohydrates

Q:lMembranelLipids
Answer:
Largestlcomponentloflplasmalmembrane.lConsistslof:lphospholipidlbilayer

Q:lPhospholipidlbilayer
Answer:
Twollayersloflphospholipids.lBarrierltolionslandlwater-solublelcompounds.lComposedlof:
•Hydrophiliclheads:ltowardlwaterylenvironment,lbothlsides
•Hydrophobiclfatty-acidltails:linsidelmembrane

Q:lIonslandlH2O-
solublelcompoundslcannotlmovelpastlthel_____l_____l_____.lAllowslforlinteriorloflcellltolhav
elal____l_____lthanlthelextracellularlenvironment.

,Answer:
hydrophobicllipidltails;ldifferentlcomposition

Q:lMembranelProteins
Answer:
Secondllargestlcomponentloflplasmalmem.,lbutl55%loflthelweightloflthelmembrane.lTwolgener
allclasses:
1.Integrallproteins
2.Peripherallproteins

Q:lIntegrallproteins
Answer:
Withinlthelmembrane.lIflitltraverseslthelwidthloflthelmembrane,litlislaltransmembranelprotein

Q:lPeripherallproteins
Answer:
•Boundltolinnerlorlouterlsurfaceloflthelmembrane
•Lesslnumerouslthanlintegrallproteins

Q:lFunctionloflMembranelProteins
Answer:
1.lAnchoringlproteinsl(stabilizers)
2.lRecognitionlproteinsl(identifiers)
3.lEnzymes-lmaylbelintegrallorlperipherallproteins
4.lReceptorlproteins
5.lCarrierlproteins
6.lChannels-lintegrallproteinlwithlalcentrallpore

Q:lAnchoringlproteins
Answer:
•Attachltolinsidel(cytoskeleton)lorloutsidel(extracellularlproteinlfiberslorlotherlcells)lstructures

Q:lRecognitionlproteins
Answer:
•Labellcellslaslnormallorlabnormall-lpreventslimmunelsystemlfromlattackinglownlcells

,•Manylrecognitionlproteinslarelglycoproteins

Q:lEnzymes
Answer:
•Catalyzelreactionslinsidelorloutsideloflcelll(dependinglonllocationloflenzyme)

Q:lReceptorlproteins
Answer:
•Bindlandlrespondltolligandsl(ions,lhormones)ltolcauselalchangelwithinlthelcell

Q:lCarrierlproteins
Answer:
•Transportlspecificlsoluteslthroughlmembrane
•Maylorlmaylnotlrequirelenergyl(ATP).lEx.lGlucoseltransporterldoeslnotlrequirelenergy,lbutlNa
+landlCa2+ltransportersldo

Q:lChannels
Answer:
•Regulatelwaterlflowlandlsoluteslthroughlmembrane
•Manylchannelslarelhighlylspecificlforlalspecificlion

Q:lMembranelCarbohydrates
Answer:
•Proteoglycans,lglycoproteins,landlglycolipids
•Extendloutsidelcelllmembrane
•Formlstickyl"sugarlcoat"l(glycocalyx)

Q:lFunctionsloflthelglycocalyx
Answer:
•LubricationlandlProtectionloflplasmalmembrane
•AnchoringlandlLocomotion
•SpecificitylinlBindingl(receptors)-lfunctionslaslreceptors
•Recognitionl(immunelresponse)-lidentifierslthatlarelgeneticallyldetermined

, Q:lMembranelTransport
Answer:
•Thelplasmal(cell)lmembranelislalbarrier,lbut:lnutrientslmustlgetlinlandlproductslandlwasteslmu
stlgetlout

Q:lPermeability
Answer:
determineslwhatlmoveslinlandloutloflalcell,landlalmembranelthat

Q:lPlasmalmembranelis...
Answer:
•Selectivelylpermeable
•Allowslsomelmaterialsltolmovelfreely
•Restrictslotherlmaterials

Q:lSelectivelpermeabilitylrestrictslmaterialslbasedlon:
Answer:
•Size
•Electricallcharge
•Molecularlshape
•Lipidlsolubility

Q:lTransportlthroughlalplasmalmembranelcanlbe:
Answer:
•Activel(requiringlenergyl-lATP)
•Passivel(nolenergylrequired)

Q:lTypeslofltransport:
Answer:
•Diffusionl(passive)
•Carrier-mediatedltransportl(passivelorlactive)
•Vesicularltransportl(active)

Q:lDiffusion

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