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Microbiology

Gram-positive bacteria, low G + C ratio (Firmicutes)

QuestionAnswer
Obligate anaerobe, contains endospores; human pathogens causing tetanus, botulism, gas gangrene, diarrhea Clostridium
Giant bacterium, large DNA, makes various proteins, reproduces by releasing the daughter cells from through a slit opening Epulopiscium
Endospores, some pathogens (anthrax, food poisoning) Bacillus
Facultative anaerobes, one of the most common causes of food poisoning; survives at high osmotic pressure and low moisture; common problem in hospitals (surgical wound infections) Staphylococcus
Human pathogens (scarlet fever, pharyngitis, erysipelas, impetigo, rheumatic fever), cause lysis of blood cells Beta-hemolytic streptococci (S.pyogenes)
Cause destruction of red blood cells by H2O2; cause pneumacoccal pneumonia, dental caries Alpha-hemolytic streptococci (S.pneumoniae, S.mutans)
Opportunictic pathogens, prefer rich in nutrients, low in oxygen environment(vagina, GI tract, oral cavity); the leading cause of nosocomial infections Enterococcus
Human pathogens, can contaminate food, survives within phagocytic cells, grow at low T; threat for pregnant women Listeria
No cell wall, human pathogens (pneumonia), can produce filaments Mycoplasmatales (Mycoplasma)
Created by: anivanova
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