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14 Cards in this Set
- Front
- Back
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Capsule-
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bacteria producing an outer covering
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Glycocalyx
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when a capsule consists of a fuzzy coat of sticky sugars
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Pili
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short hair like protein structures found on surface of some bacteria
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Endospore
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dormant structure that is produced by some Gram-positive bacterial
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Saprophytes
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Heterotrophic bacteria that feed on dead & decaying material for energy
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Photoautotrophs
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- bacteria that use sunlight as an energy (cyanobacteria)
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Obligate anaerobes
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bacteria that cannot survive in presence of oxygen
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Facultative anaerobes
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can live w/ or w/o oxygen
Ex. E.coli |
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Obligate Aerobes
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bacteria that cannot survive w/o oxygen
Ex. Mycobacterium tuberculosis |
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Thermophilic
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bacteria that grows best in temps b/w 40 celsius & 110 Celsius
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Transformation
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bacterial cell takes in DNA from its external environment
New DNA substituted for similar DNA in chromosome |
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Conjugation
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process by which two living bacteria bind together & one bacterium transfers genetic info to other
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Transduction
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virus obtains a fragment of DNA from a host bacterium & gives it to other bacteria
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Conjugation Bridge
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passageway for transfer of genetic info
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