OnTask_______
100%Effort_______
Pen/Pencil
CellBiologist’sName:_____________________________Period:____Date:______________
Andon.me_______
Mrs.Bouchard–7thGradeScience
A+expecta.ons_______
Be your best.
Respira@on,EnergyandLifeReading
Total:/4
DIRECTIONS:Belowarethedirec.onsyouwillfollowduringtoday’spartnerreadingac.vity.
Readthedirec.ons,thenanswertheques.onsatthebo=om.
1.  Thisreadingwillbedone“reciprocalteaching”style.Youwillbeannota.ngforthe
answertotheques.on:“Whydothecellsofalllivingthingsneedtocomplete
respira@on?”
2.  TheSummarizerwillreadthefirstparagraph.Thesummarizerwillgiveashort(lessthan
15words)summarytothegroupbeforetheymoveonthenextparagraph.Everyonewill
writethesummarydowninthecloudnexttothatparagraph.
-Thesummarizerofthegroupis:___________________________________
3.  Thepredictorwillreadthesecondparagraph.Thepredictorwillbrieflydescribewhat
theythinkwillbemen.onedinthenextparagraphorlaterinthetext.
-Thepredictorofthegroupis:___________________________________
4.  Theques.onerofthegroupwillreadthethirdparagraph.Theques.onerwillaska
ques.onthatisrelevanttounderstandingthetext.
-Theques.onerofthegroupis:_________________________________
5.  Theclarifierofthegroupwillreadthefourthparagraph.Theclarifierwillclearupany
confusionabouttheparagraphorwillexplainwhatanimportantwordfromthetext
means.
-Theclarifierofthegroupis:____________________________________
AUerallgroupmembershaveread,thereadingorderstartsbackatsummarizeragain.This
processcon.nuesattheendofeachparagraph.
Congratula@ons!Youarereadytoread!
Whenyouaredone,youcanchecktheanswerkey!
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Respira@on,EnergyandLife
Oneofthebigques.onswe’llbeaskingthisyearis,“What
doesitmeantobealive?”Sofar,weknowalllivingthingsare
madeofcells,andalllivingthingsusetheircellmembranesto
achievebalance–takinginwhattheyneed,andgefngridof
whattheydon’tneed.
Here’sonemore:Alllivingthings,noma=erhowbigorhow
small,needtoacquire(get)anduseenergy.Humans?We
needtouseenergytomove,andtouseourbraintothink.
Plants?Theyneedtouseenergytogrowandreproduceby
makingseeds.Bacteria?Eventheyneedenergytomove
around.Ifyou’realive,youmustneedenergy.
Youprobablyrememberfromourcellsunitthatthe
organellescalledmitochondriaareresponsibleforbreaking
downfoodtomakeenergy.That’swhythemitochondriaare
likethepowergeneratorsinafactory.Justlikepower
generatorsprovidefactorieswithpower,mitochondria
providecellswithenergy.
However,wehaven’tstudiedhowexactlymitochondriamake
energy.Well,herewego.Mitochondriaallowyourcells(and
thecellsofmanylivingthings)tomakeenergythrougha
processcalledrespira'on.Duringrespira.on,the
mitochondriainyourcellsbreakdownsimplefoodmolecules
(suchassugar)andreleasetheenergytheycontain.
!
AMitochondrion
(SingularofMitochondria)
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Now,yourcellscan’tstoreenergy.So,yourcellsstorefood
instead.Whenyoueat,yourbodybreaksdownfoodinto
smallmolecules.Ifyoudon’tneedtheenergyrightthat
instant,yourcellswillstorethatfoodinvacuolesforlater.
Whenyourcellsneedenergylater,that’swhenrespira.on
begins.
Respira.onhappensintwoparts.First,foodthatyourcells
havebeenstoringisbrokendowninto.nypiecesofsugar.
Evensomethinglikeahotdogcanbebrokendownintosugar,
whenyoubreakitdownintosmallenoughpieces.This
happensinthecytoplasmofyourcells.
Thesecondpartofrespira.onhappensinyourmitochondria.
Those.nypiecesofsugarenterthemitochondria,are
combinedwiththeoxygenthatyoubreathe,andthenbroken
downevenfurthertoreleaseahugeamountofenergy.This
processalsocreateswaterandcarbondioxidegasasextra
products,whichyoucanthenexhale(breatheout).
Whenthemitochondriamakeenergythroughrespira.on,
thatenergyismadeasasmallchemicalcalledATP.Oncethe
mitochondriahavemadetheATP,itcanbesentalloverthe
cellandtoothercellssotheycanusetheenergy.Wehaveto
makeandusetonsofATPeverydaytopowerourlegs,our
arms,ourmouthsandourbrains!
AMitochondrion
(SingularofMitochondria)
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Be your best.
Scien.st’sName:_________________________________Period:_____Date:______________
Mrs.Bouchard–7thGradeScience
Post-ReadingQues@ons
1.  Belowarepicturesofacaterpillar,moldandafern.
Whatdotheseorganismshaveincommon?
a.  Theycanmaketheirownfood. b.Theycausediseases.
c.  Theyneedenergy.
breatheoxygen.
d.Theyneedto
ExplainYourAnswer:__________________________________________________________
____________________________________________________________________________
2.  WhichofthefollowingisNOTareasonenergyisimportanttoacell?
a.  Respira.onproducestheenergyyouneedtomove.
b.  Respira.onallowsyourbraintothink,readandsolveproblems.
c.  Respira.onallowsyourcellstotakeinfoodthroughdiffusion.
d.  Respira.onproducestheenergyyouneedtoliveandgrow.
ExplainYourAnswer:__________________________________________________________
____________________________________________________________________________
3.  Whichofthefollowingbestexplainsthewordrespira'on?
a.  Whenacelldiesnaturally,withoutkillingtheen.reorganism.
b.  Whenacellbreaksdownfoodtoproduceenergy.
c.  Whenanorganismmadeofcellsbreathesinoxygen.
d.  Whenacelluseschloroplaststomakeitsownfood.
Goodstart.Nowkeepgoing!
4
Work Hard. Get Smart.
4.  WhichofthesediseaseswouldMOSTpreventacellfromperformingrespira.on?
a.  Abacterialinfec.onthatweakensthecellmembrane.
b.  Aparasitethatdisablesyourcell’sgolgibody.
c.  Afungusthatseverelyclogsupthecell’sendoplasmicre.culum.
d.  Avirusthatdestroysallofthecell’smitochondria.
ExplainYourAnswer:__________________________________________________________
____________________________________________________________________________
5.  WhichofthesediseaseswouldhavetheLEASTeffectoncellularrespira.on?
a.  Avirusthatcausesyourvacuolestoshrinkinsize.
b.  Abacteriathatcausesyourribosomestoproducelessprotein.
c.  Acancerthatreducesthesizeofyourmitochondria.
d.  Afungusthatstopsyourlysosomesfrombreakingdownfood.
6.  Whichofthefollowingisneitheraningredientnoraproductofrespira.on?
a.  Sugar
b.Water
c.  Salt
d.Oxygen
7.  WhichofthefollowingbestexplainswhatATPis?
a.  Oneofthekeyingredientsinrespira.on.
b.  Thechemicalthathelpsthecellmembranetakeintheoxygenitneedstolive.
c.  Thechemicalthatholdstheenergyproducedbyrespira.on.
d.  Thenameofthetypesofcellsthatcanuserespira.on.
8.  WhichofthefollowingisMOSTliketheprocessofrespira.onincells?
a.  GoingforawalkontheDelawareRiver.
b.  Movingwithabigcrowdofpeopletowheretherearefewerpeople.
c.  TryingtocollectalloftheEastereggsduringanEasteregghunt.
d.  Pluggingyourphonechargerintothewalltogiveitthepowertowork.
You’redone!
Raiseyourhandsoyourteachercancheckyourwork.
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