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Imagineaminiaturecity,wherecellsareliketinymetropolises.

Withinthesecellcities,organellesfunctionlikecompanies,places,orpartsofthecity.Theyeachhaveuniqueroles,justasorgansdoinourbodies.Thisanalogyhelpsstudentsvisualizehowcellsworkbycomparingtheorganellestodifferentstructureswithinthecity.Theworksheetguidesstudentsinthinkingaboutwhichcitystructurecorresponds

toeachorganelle,withthought-provokingquestionsthatarerespectfuloftheirtime.Cellsarelikecities!Let'smatchthecityserviceswiththeircellularcounterparts.Here'show:####ConstructionCompany***Buildsstructures:**EndoplasmicReticulum**(ER)-manufacturesproteinsandlipids*Producessteelwidgets:**Ribosomes**-

translatesmRNAintoprotein####DeliveryVan***Deliversproducts:**GolgiApparatus**-sorts,modifies,andpackagesproteinsandlipids*Transportsgoods:**CellMembrane**-regulateswhatentersorleavesthecell####FoodProcessingPlant***Processeslargequantitiesoffood:**Mitochondria**(powerhouses)-generatesenergyfor

cellularactivities*Packagesfood:**Lysosomes**-breaksdownandrecyclescellularwasteanddebris####Warehouse***Storesmaterials:**Nucleus**(storehouseofgeneticinformation)*Suppliesthecity:**Nucelolus**(aregionwithinthenucleus)Let'sbuildourowncellanalogyusingadifferentmodel.Howaboutaschool?*Classroom

(Nucleus):houseseducationalmaterialandlearning*Students(Proteins):learnfromteachers(mRNA)andperformtasks*Teachers(mRNA):provideinstructionsforstudentstofollow*Hallways(CellMembrane):connectclassrooms,allowingstudentstomovebetweensubjectsOtherresourcesoncells:*AnimalCellColoring:coloratypicalanimal