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14 Cards in this Set
- Front
- Back
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gram-positive bacteria
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cell walls have thick layer of peptidoglycan; purple gram stain reaction; look smoother
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gram-negative bacteria
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cell walls have a thin layer of peptidoglycan and an additional outer member; pink gram stain; endotoxins; antiobiotic susceptibility
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capsule
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sticky layer of polysaccharides or protieins; adhere, protect from immune system, prevent dehydration
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fimbrae
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"attachment pili"; attach to things
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flagella
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movement of bacteria
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basal apparatus
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system of rings embedded in cell wall and plasma membrane
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plasmid
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extra chromosomal DNA; carries factor that helps bacteria survive (NOT part of bacterial DNA; always circular)
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endospores
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structure formed by bacteria that is resistant to radiation, heat, dehydration, etc. 2 types of bacteria that can do this: bacillus (anthrax), clostridium (botulism)
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cocci
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spherical shaped bacteria
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bacilli
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rod-shaped bacteria
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spirilli
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spiral shaped bacteria
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transformation
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picking up genetic material from the environment (recombinant)
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transduction
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getting genetic info from a virus
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conjugation
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sex pilus transfers genetic material
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