Prokaryotic Domains Cells without nuclei 23 April 20141Prokaryotic-lab.ppt.

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Presentation transcript:

Prokaryotic Domains Cells without nuclei 23 April 20141Prokaryotic-lab.ppt

Prokaryotic Domains Cells lack (never evolved) nuclei Mostly small –Eukaryotic cells 7-20  m –Prokaryotic cells  m 23 April 20142Prokaryotic-lab.ppt

Prokaryotic Diversity 23 April 20143Prokaryotic-lab.ppt Cell shapes –Sphere = coccus –Rod = bacillus –Spiral = spirillum

Prokaryotic Diversity Cell walls –Gram positive Thick cell wall stains purple –Gram negative Thin cell wall does not stain purple 23 April 20144Prokaryotic-lab.ppt

Photosynthetic Bacteria Cyanobacteria (blue-green algae) –Anabaena –Oscillatoria –Gleocapsa 23 April 20145Prokaryotic-lab.ppt

Diversity of Prokaryotes Shapes Gram positive or negative Heterotrophic or photosynthetic then ??? 23 April 20146Prokaryotic-lab.ppt

Diversity of Prokaryotes Respiration in Eukaryotes –Glucose + O 2  CO 2 + H 2 O + energy –Glucose + [No O 2 ]  lactic acid + energy –Glucose + [No O 2 ]  ethyl alcohol + CO 2 + energy 23 April 20147Prokaryotic-lab.ppt

Diversity of Prokaryotes Respiration in Prokaryotes –Glucose + O 2  CO 2 + H 2 O + energy –Glucose + [No O 2 ]  lactic acid + energy –Glucose + [No O 2 ]  ethyl alcohol + CO 2 + energy 23 April 20148Prokaryotic-lab.ppt

Diversity of Prokaryotes Respiration in Prokaryotes –[carbon source] + H 2 S + O 2  CO 2 + S 2 (or H 2 SO 4 ) + energy –[carbon source] + N 2  NH 3 + energy –[carbon source] + NH 3 + O 2  CO 2 + HNO 2 + energy –[carbon source] + Fe +2 + H 2 O + O 2  CO 2 + Fe +3 (rust) + OH - + energy –And more !!!! 23 April 20149Prokaryotic-lab.ppt

Photosynthetic Bacteria Cyanobacteria (blue-green algae) –Anabaena (#29) –Oscillatoria –Gleocapsa 23 April Prokaryotic-lab.ppt

Prokaryotic Diversity 23 April Prokaryotic-lab.ppt Cell shapes (#30) –Sphere = coccus –Rod = bacillus –Spiral = spirillum

Review for Lab Final All labs after midterm (Spring Break)  Phyla & Classes of invertebrate animals Lancelet Clam dissection Earthworm, nematodes, flatworms tapeworm Cnidaria, living & on slides  Kingdom Fungi, Phyla  Protista, living and on slides  Prokaryotes (today) 23 April 2014Prokaryotic-lab.ppt12