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Cell Types Prokaryotes and Eukaryotes. PROKARYOTES are BACTERIA NO NUCLEUSNO NUCLEUS All are unicellularAll are unicellular smallersmaller ancient –ancient.

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Presentation on theme: "Cell Types Prokaryotes and Eukaryotes. PROKARYOTES are BACTERIA NO NUCLEUSNO NUCLEUS All are unicellularAll are unicellular smallersmaller ancient –ancient."— Presentation transcript:

1 Cell Types Prokaryotes and Eukaryotes

2 PROKARYOTES are BACTERIA NO NUCLEUSNO NUCLEUS All are unicellularAll are unicellular smallersmaller ancient –ancient – 1 st cells to evolve 1 st cells to evolve DNA in circlesDNA in circlesEUKARYOTES are cells of Animals, Plants, Protists, and Fungi HAVE A NUCLEUSHAVE A NUCLEUS unicellular or multicellularunicellular or multicellular Have a membrane systemHave a membrane system (highly organized)(highly organized) DNA in long strandsDNA in long strands

3 A comparison of 2 types of Eukaryotic Cells: ANIMAL CELLS HAVE NO cell wallNO cell wall CentrioleCentriole (role in cell division) LysosomesLysosomes (cell “stomach”) (cell “stomach”) PLANT CELLS HAVE Cell wallCell wall Chloroplasts (green)Chloroplasts (green) Large central vacuolesLarge central vacuoles

4 Plant cells Animal cell green leaf (400x) cheek cell (400x) Plant cells Animal cell green leaf (400x) cheek cell (400x)

5 This is a micrograph of cheek cells and some bacteria. Our cheek cells (pink) are eukaryotic cells. Bacteria (purple) are prokaryotic cells.

6 Relative sizes of “small”

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