Term
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Definition
1)c.tetani-causative agent of tetanus
2)c.perfringens-causative agent of gas gangrene
3)c.botulinum-causatve agent of botulism food poisonng |
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Term
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Definition
spore forming
1)b.anthracis-pathogenic and causes anthrax in cattle
2)b.subtilis and b.cereus are nonpathogenic species
3)b.thuringiensis-has been used as a biological pesticide(BT) to curb the spread of the gypsy moth which can be very damaging to agriculture |
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Term
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Definition
display random cell arrangement typically described as grape-like (staphylo)
catalase positive, facultative halophiles that tolerate up to 10% NaCl. many species are normal residents of the skin and upper respiratory tract |
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Term
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Definition
| pathogenic strains are coagulase positive and may infect any area of the human body. staph skin infections are very common. strains of this bacterium can cause TSS |
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Term
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Definition
| common, nonpathogenic inhabitant of human skin. colonies show a porcelain white pigmentation on solid agar media |
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Term
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Definition
| generally nonpathogenic but is one of the leading causes of UTIs |
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Term
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Definition
all members are catalase negative, some are halotolerant of 6.5% NaCl while others are not. this can be used to differentiate species of this genus
group alpha: hemolytic bacteria partially breaks down RBCs and produces green pigment biliverdin
Beta: hemolytic bacteria destroy RBCs and cause a clearing of the agar
Gamma: hemolytic bacteria do not cause any visible change |
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Term
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Definition
| group A, Beta-hemolytic Streptococcus |
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Term
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Definition
| Group B, Beta-hemolytic streptococcus |
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Term
(streptococcus genus)
enterococcus faecalis |
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Definition
| Group D, Gamma-hemolytic streptococcus |
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Term
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Definition
| Group K, Alpha-hemolytic streptococcus |
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Term
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Definition
-cells don't form cell wall
-plasma membrane possess sterol compounds, similar to cholesterol
-cells are pleiomorphic (no specific shape)
-cells display fastidious growth requirements when grown on artificial media
-cellular growth is slow and colonies are small
m.pneumoniae-cause of primary atypical pneumonia |
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