#3a Functional Anatomy of Prokaryotic and Eukaryotic Cells
Thayne Sweeten
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| -Do not have their genetic material enclosed inside a membrane; it is typically one circular chromosome. -Do not have membrane bound organelles. -Do not have DNA associated with histone proteins (special chromosomal proteins found in eukaryotes). -Usually have cell walls containing peptidoglycan -Divide by binary fission |  | |
| 0.2 to 2.0 micrometers in diameter and 2 to 8 micrometers in length | ||
| Round or spherical |  | |
| Rod shaped | | |
| bacilli which look like cocci | ||
| comma shaped, spiral shaped, or corkscrew shaped | | |
| varies in shape |  | |
| Star shaped and square shaped bacteria have recently been discovered. | ||
| -Single -Diplococci (pairs) -Streptococci (chains) -Tetrads (packet of four) and sarcinae (packets of eight) -Staphylococci (irregular clusters) |  | |
| -Single -Diplobacilli (pairs) |  | |
| Coccobacilli (resemble cocci) | |