Summary Bacteria Flashcards
1
Q
Staphylococcus
A
- Gram positive, round bacteria. Forms grape-like structures with other bacteria.
- Coagulase and Catalase negative.
- Facultative anaerobes
- It is a commensal bacterium, meaning it neither harms nor benefits its host that is getting its nutrients from unless in certain conditions (like immunocompromised).
2
Q
Streptococcus
A
- Gram positive
- Catalase negative: cannot breakdown hydrogen peroxide - often cultured on BAP.
- Round bacteria that tends to link to other bacteria in chain-link structures.
- Many different types of strep. The best is to grow it on BAP and let it differentiate itself by hemolytic activity. (alpha, beta, gamma)
3
Q
Mycobacterium
A
- Small aerobic, non-motile, rod shaped bacteria.
- It is a weak gram stain so an acid-fast stain is used.
- TB & Leprosy
4
Q
Clostridium
A
- A gram-positive, anaerobic, spore-forming, bacillus bacteria that is often found in water/soil.
- Botulism, Tetanus and Gas Gangrene
5
Q
Legionalla
A
- A gram-negative, aerobic (single flagella) bacterium.
- Legionnaires
6
Q
Yersinia Pestis
A
- A gram-negative, faculative anaerobe, bacillus. bacterium.
- Bubonic, pneumonic, septimic plagues.
7
Q
Anthracis
A
- A gram-positive, aerobic, rod-shaped, spore-forming bacterium.
- Cutaneous, pulmonary , GI anthrax
8
Q
Borrelia Burgdorferi
A
- A motile (multiple flagella), anaerobic spirochete (negative strain required) bacterium.
- Lymes Disease
9
Q
Neisseria Gonorrhea
A
- A gram-negative, diplococcic and fastidious bacterium. Best grown on a chocolate agar.
- Gonorrhea
10
Q
Treponema Pallidum
A
- A gram-negtaive spirchote. The spirochete is thin so visualization like gram-staining is difficult.
- Most often identified by dark-field microscopy.
- Syphilis
11
Q
Chlamydia Trachomatis
A
- A gram-negative, non-motile rod bacterium. Must be grown on viable cells and not on agar media alone.
- Chlamydia