Mitosis

Nucleus-___________________________thecell.Nucleolus-Makes_______________________________andmaybemorethan_______inthenucleus.Chromosomes-Determineswhat________________________youwillhaveandpassesinformationfrom____________________to___________________________CellMembrane-Givesthecell______________________andcontrolswhatmoves___________and_________________ofthecell.Cytoplasm-___________________________materialwhere___________________________arefound.Vacuole-__________________________filledandmaystore______________________,___________________________,_______________________or_______________________Mitochondria-Produce____________________whenfoodisbrokendown.Knownasthe______________________________ofthecell.Ribosomes-Where_____________________aremade.Theremaybe___________________inacell.Centrioles-Foundonlyin___________________________cellsandareusedincell________________________________.

Whatismitosis?Whatisthepurposeofmitosis?Whydocellsdivide?_______________________________________________________________________________ProkaryoticCellDivisionBacteriaproduceby___________________________________________.Thisissimplebecausethereareno_____________________________________________.Itbeginswith____________replicationandthecell__________________andwillresultintwoidentical_____________________.EukaryoticCellDivisionMitosis

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• Meiosis

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Mitosis !

What is mitosis? What is the purpose of mitosis? Fill in the cell cycle

Describeeachpartofthecellcycle:G1-S-G2-M-Fillinthecellcycle

DNAandCellDivision

• Duringcelldivision,geneticmaterialis__________________

• DNAisdividedintolongchainscalled____________________

• Chromosomesarewrappedaroundproteinscalled_____________________

• ____________________________:theunitwrappedaroundhistones.Twocopiesofeach

chromosomesarecalled

___________________________chromatids

ChromosomeStructure

• Normallythechromosomesareallspreadoutandunidentifiable.

Thisiscalled__________________

• Thetworeplicatedchromosomesarecalledsister_____________________

• Thechromatidsareheldtogetheratthe________________________by

proteinscalled_______________________________.TheCellCycle

• Thelengthoftimeacelltakesinthecycledependsonthetypeof

cell.Usuallythemorespecialized,thelesslikelytheyareto

___________________

• Redbloodcellsarereplicatedatarateof_____________million/sec

• Maturenervecellsdonot_________________________andremainin

theG0stageuntilthey________________.

ChromosomenumberismaintainedbecausetheDNAis_____________________andthendivides.TheSpindleApparatus

• Consistsof______setsofmicrotubules

• Extendfromeachofthecells__________________________.

• Inbothplantsandanimals,thespindlefibersoriginatefrom

_____________________________.Inanimalcellsthecentrosomesare

______________________________.

DescribeInterphase-IsInterphasepartofmitosis?Nuclearenvelopevisible-YESorNOChromosomesvisible-YESorNONucleolusvisible-YESorNOMitosisisdividedinto_______phases:_______________________________________________________________________________________

ProphaseChromosomes________________Centriolesmovetothe__________________ofthecellSpindleapparatusis___________________Nuclearenvelope______________________CentriolesandcentrosomesarethesameMetaphaseMicrotubulespulltheChromosomesto________________________Inthecenterofthecell.“MetaphasePlate”__________________________________connecttocentromeresbetweenthechromatids

AnaphaseRemovalof_________________________proteincausecentromerestoseparate.Thecentromeremovesalongthespindlefiberstothe____________________Chromosomesbegintomove_______________________TelophaseSpindleapparatus_____________________Nuclearenvelope_____________________Chromosomes______________________________________________reappears

Cytokinesis•

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• o

o AnimalcellwithcleavagefurrowPlantcellwithcellplateOneparentà________________________________________________Chromosomenumberremainsthe_________________________fromonegenerationtothenext,hopefully.

Plantcell AnimalCell

Centrioles

Cytokinesis

Controlofthecellcycle

1.

2.

3. Whatistheroleoftumorsuppressorgenesandwhathappensiftheyaremutated?