Article 2: Major Groups of Disease-Causing Bacteria (Worksheet) Flashcards Preview

Microbiology Exam 1 > Article 2: Major Groups of Disease-Causing Bacteria (Worksheet) > Flashcards

Flashcards in Article 2: Major Groups of Disease-Causing Bacteria (Worksheet) Deck (18)
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1
Q

Gram Positive Cocci: 3 main species

A

Staphylococcus, Streptococcus, Enterococcus

See “-coccus” think “Cocci”

2
Q

Positive vs Negative Catalase Test

A

Positive: Staphylococcus

Negative: Streptococcus or Enterococcus

3
Q

Positive vs Negative Coagulase Test

A

Positive: Staphylococcus aureus

Negative: (Novobiocin Test needed)

4
Q

Positive vs Negative Novobiocin Test

A

Positive (i.e. Sensitive): Staphylococcus epidermidis

Negative (i.e. Resistant): Staphylococcus saprophyticus

5
Q

Hemolysis on Blood Agar Test (either Streptococcus or Enterococcus species, at this point)

A

Alpha: (Optochin sensitivity test needed)

Beta: (Bacitracin sensitivity test needed)

Gamma: Enterococcus Species

6
Q

Sensitive vs Resistant Optochin Sensitivity Test

A

Sensitive: Streptococcus pneumoniae

Resistant: Enterococcus species

7
Q

Sensitive vs Resistant Bacitracin Sensitivity Test

A

Sensitive: Streptococcus pyogenes

Resistant: Streptococcus agalactiae

8
Q

Gram Positive Rods: 2 subcategories and 4 species

A

Anaerobic Spore-Forming:
-Clostridium

Aerobic:

  • Bacillus
  • Listeria
  • Corynebacterium
9
Q

Positive vs Negative Anaerobic Growth Test

A

Positive: Clostridium species

Negative: (Spore formation test needed)

10
Q

Positive vs Negative Spore Formation Test

A

Positive or Negative: (Motility Test needed)

11
Q

Positive vs Negative Motility Test with a Positive Spore Formation Test

A

Positive: Bacillus cereus

Negative: Bacillus anthracis or Bacillus cereus

12
Q

Positive vs Negative Motility Test with a Negative Spore Formation Test

A

Positive: Listeria monocytogenes

Negative: Corynebacterium diptheriae

13
Q

Gram Negative Rods: Enterobacteriaceae Family

A
Esterichieae coli
Klebsiella pneumoniae
Salmonella enterica
Salmonella typhi
Proteus species
Shigella species
Yersinia pestis
14
Q

Positive vs Negative Lactose Fermentation Test

A

Positive: Esterichieae coli or Klebsiella pneumoniae

Negative: (H2S Production Test/Motility Test needed)

15
Q

Positive vs Negative H2S Production Test/Motility Test

A

Positive: Salmonella enterica, Salmonella thyphi, or Proteus species

Negative: Yersinia pestis or Shigella species

16
Q

Gram Negative Cocci: Neisseria Species

A

Neisseria meningitidis or Neisseria gonorrheae

17
Q

Positive vs Negative Maltose Test

A

Positive: Neisseria meningitidis

Negative: Neisseria gonorrheae

18
Q

Which bacteria are not usually gram stained and why? (4 of them from worksheet)

A

Mycoplasmas (Lack of cell wall)
Mycobacteria (Acid fast staining)
Chlamydia and Chlamydophila (Obligate parasite)
Borrelia (Wright’s staining)