Cell Biology (4610) Exam 1 Questions and Answers All Verified 2026

Cell Biology (4610) Exam 1
Questions and Answers All
Verified 2026
CellBTheoryB-BAnswerB1.BABcellBisBtheBbasicBunitBofBorganisms

2.BAllBlivingBthingsBareBmadeBupBofBcells

3.BnewBcellsBariseBfromBpreexistingBcells



CellBCultureB-
BAnswerBtheBprocessBofBseparatingBcellsBinBtissuesBandBgrowingBcellsBinBculture.



AnimalBCellB-BAnswerB*B10-30Bum

*B5BtimesBsmallerBthanBtheBsmallestBparticleBthatBisBvisibleBtoBtheBnakedBeye



RichBMediumB-BAnswerB-B9BessentialBaminoBacids

-Bvitamins

B-BpeptideBandBproteinBgrowthBfactorsB(calfBserum)



NegativelyBChargedB-
BAnswerBsolidBsurfaceBthatBmimicsBtheBextracellularBinteractionsBinBanimalBcells.



PrimaryBCellBCultureB-
BAnswerBcellsBpreparedBdirectlyBfromBtissuesBofBanBorganism.BoftenBdisplayBtheBdiffe
rentiatedBpropertiesBofBtheBorgansBfromBwhichBtheyBwereBisolated.BdisadvantageBisBt
hatBtheBcellsBhaveBaBfiniteBnumberBofBdoublings.B(50-100)

,CellBStrainB-
BAnswerBaBlineageBofBcellsBoriginatingBfromBoneBinitialBprimaryBcellBculture



CellBcultureBstagesB-BAnswerB1.Bgrowth

2.BcellBstrain

3.BcellBsenescence



TransformedBCellsB-
BAnswerBusuallyBcellsBderivedBfromBaBtumorBorBcellsBthatBhaveBundergoneBspontane
ousBgeneticBchange.B



ex:BHeLaBcells,BCHOBcells



TransformedBCellBCharacteristicsB-BAnswerB-Bimmortal,BcellBlineB(continuousBgrowth)B

-BgrowBtoBhigherBdensities

-BsolidBsurfaceBnotBrequired



TransformedBCellBDisadvantagesB-
BAnswerBMayBnotBaccuratelyBrepresentBoriginalBcellsBinBtissue.BTheBnumberBofBchro
mosomesBinBtransformedBcellsBisBaltered,BtermedBaneuploidy.



MicroscopyB-BAnswerBobservingBcellularBeventsBasBanBessentialBtoolBinBtheBfield.



ResolutionB-
BAnswerBabilityBtoBdistinguishBbetweenBtwoBobjectsBorBtheBminimumBdistanceBbetwe
enB2BdistinguishableBobjects.



TheBlimitBonBlightBmicroscopyBisBsetBby?B-BAnswerBtheBwavelengthBofBvisibleBlight



ResolutionBFormulaB-BAnswerB-D=B0.61/Nsin(a)

, NB-BAnswerBrefractiveBindexBofBtheBmedium



AlphaB-BAnswerBtheBwavelengthBofBangularBaperture



Nsin(a)B-BAnswerBnumericalBaperture



HowBisBresolutionBimproved?B-
BAnswerBusingBshorterBwavelengthsBorBincreasingBtheBNBorBa.



TheBlowerBtheBD....B-BAnswerBTheBbetterBresolution



BrightBFieldBMicroscopyBAdvantagesB-BAnswerB-Bsimple,Binexpensive

-BnoBstainingBrequired

-BliveBcellBimaging



BrightBFieldBMicroscopyBLimitationsB-BAnswerB-BveryBlowBcontrast

-BlowBopticalBresolutionBdueBtoBtheBblurBofBoutBofBfocusBmaterial



WaysBtoBImproveBBrightBFieldBMicroscopyB-BAnswerB1.Boptical

2.Bphysical

3.Bbiochemical



OpticalBImprovementsB-BAnswerB-BDifferentialBInterferenceBContrastB(DIC)

-BPhaseBContrastBMicroscopy



DICBMicroscopyB-BAnswerB-BgivesB3DBlikeBimages

-BsmallBdetailsB