I. Prokaryotes A.Cells w/o a membrane bound nucleus B.Genetic material – one DNA loop C.Plasmid- additional circular DNA (genetic engineering) D.Cell wall.

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I. Prokaryotes Cells w/o a membrane bound nucleus

I. Prokaryotes Bacilli Cocci Spirilla.

Presentation transcript:

I. Prokaryotes A.Cells w/o a membrane bound nucleus B.Genetic material – one DNA loop C.Plasmid- additional circular DNA (genetic engineering) D.Cell wall E.Mostly single cell

II. Bacteria A.Three Common Shapes 1.Cocci (coccus): Spherical 2.Bacilli (bacillus): Rod Shaped 3.Spirilla (spirillum): Corkscrew images.google.com/images?um=1&hl=en&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=spirillum&spell=1

B. Colony Types (groupings) 1. diplo: two a. Diplococcus gonorrhea 2. staphylo: groups/masses b. Staphylococcus (MRSA) 3. strepto: linear c. streptobacillus –

C. Reproduction 1. Binary Fission – divides into two

D. Nutrition 1. Most heterotrophs – depend on other organisms for food 2. saprophytes: decomposers (feed on dead organic mat’l) 3. parasites: disease causing

E. Antibiotics: chemical capable of inhibiting the growth of some bacteria 1. Penicillin – syphilis… 2. Tetracycline – malaria, plague, acne 3. Streptomycin- TB, vet meds, pesitcides

III. Virus A.Non-living particle (no respiration, growth, etc) B.Reproduce only in a host cell C.Structure: 1.Inner core of nucleic acid 2.Protein coat (many different shapes)