WK 1.08 Cells: Prokaryotes.

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Presentation transcript:

WK 1.08 Cells: Prokaryotes

REMINDER: Cell Theory All living organisms are composed of cells. They may be unicellular or multicellular. The cell is the basic unit of life. Cells arise from pre-existing cells.

2 Main Kinds When we look at types of cells, we break them down into two main categories: Prokaryotes “simple” “circular DNA” Cell wall Eukaryotes Complex Have “organelles”

Eukarotes (Plant, Fungi, Animal) http://micro.magnet.fsu.edu/cells/

Prokaryotes Is it THAT simple?. Photo: wiki

Prokaryotes YES!

Bacterial shapes Staphylococcus bacteria Bacillus Spirillum Photo: wiki

REMEMBER Prokaryotes DO NOT have a nucleus, mitochondria, or any other membrane-bound organelles. They DO have a cell wall. Photo: wiki