CellBiology2.2Prokaryo0cand2.3Eukaryo0cCells

Essen0alQues0on:Eukaryoteshaveamuchmore

complexcellstructurethanprokaryotes.

Prokaryotic (before “nucleus”)

•  Lacks membrane-bound organelles •  Has a single, usually cicular DNA •  Lacks compartmentalization •  Adapted to most types of

environments

ProkaryoteCellParts•  CellWall

–  Givesthecellstructureandstrength•  PlasmaMembrane

–  Separatestheinternalfeaturesfromtheoutsideenvironment•  Cytoplasm

–  Holdscell’sorganellesandenzymes•  Pili

–  Helpthecellholdontootherstructuresandaidinmovement

GeneralSizeisabout

1-2um

ProkaryoteReproduc0on

•  Mostbybinaryfission– Asexualmethod

•  Gene0callyiden0cal

Eukaryotes

Eukaryotes•  Have a membrane-bound nucleus •  Possess membrane bound organelles •  Structurally complex •  May have a cell wall (plants)

AnimalCell

PlantCell

Interac0veCell

•  InsideaCellLinkhNp://learn.gene0cs.utah.edu/content/begin/cells/insideacell/