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Unformatted text preview: one can get a little bit of energy if one mixes hydrogen and CO2 colony of methanogenic cells combines hydrogen and CO2 to make methane, making methanogenic cells chemoautotrophic. Heterotrophs: get energy from other living things Bacteria Cell shapes Spiral = spiralla many species are free-living in soil one sp. Treponeme pallidum causes Syphilus Rod = Bacilla Many are free-living in soil One sp. Escherichia coli lives in guts . Round or Ball = Cocci Diplococcus: pneumonia, gonorrhea Streptococci: strepthroat Sarcineefree-living in open water When bacteria divide, the cell wall pinches into two and the ring of DNA present in the one bacteria is duplicated and pinched in two (one ring for each cell). EUKARYOTES the complicated cell can do so much more than the single cell (bacteria, etc.)....
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