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Microbiology Exam 2 > Bacteria Part 1 ( Gram + & - Cocci ) > Flashcards

Bacteria Part 1 ( Gram + & - Cocci ) Flashcards

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1
Q

What are the gram positive cocci? (2)

A

Staphylococcus
Streptococci

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2
Q

Describe staphylococcus ?

A

Grows in in grape like clusters

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3
Q

What are the 2 pathogens that fall under staphylococcus?

A

S. Aureus
S. Epidermidis

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4
Q

Describe what s. Aureus is? (4)

A

Yellow/golden growth on agar
Found in skin & nose
Grows High concentration of salt
Famous for TSS
( toxic shock syndrome )

(Staphlococcus)

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5
Q

Describe what s. Epidermidis ? (3)

A

Normal skin flora
Nosocomial infections ( from hospital )
Heart value & hip replacement surgeries

(Staphylococcus)

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6
Q

What is streptococci?(2)

A

Grows in chains
Characterized by patterns of hemolysis

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7
Q

What are the 3 types of how streptococci grows on an Agar plate?

A

Alpha hemolysis
Beta hemolysis
Gamma hemolysis

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8
Q

What is alpha hemolysis? (2)

A

Partial RBC hemolysis
Green color

(Streptococci)

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9
Q

What is beta hemolysis?

A

Complete RBA hemolysis
Clear color

(Streptococci)

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10
Q

What is gamma hemolysis? (2)

A

No RBC hemolysis
Not pathogenic

(Streptococci)

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11
Q

What are the pathogens under alpha hemolytic for streptococci? (2)

A

S. Pneumonia
S. Mutans

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12
Q

What does s. Pneumoniae do?

A

Causes pneumonia & meningitis

( streptococci )

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13
Q

What does s. Mutans do?

A

Causes plaque & cavities
(Streptococci)

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14
Q

What are the 2 pathogens from beta hemolytic of streptococci ?

A

S. Pyogenes
S. Agalactiae

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15
Q

Describe s. Pyogenes ?(2)

A

Cause strep throat ( pharyngitis ) & skin infections

(Streptococci)

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16
Q

Describe s. Agalactiae?(2)

A

Normal vaginal flora
(Can be pathogenic )
(Streptococci)

17
Q

What are the 3 gram negative cocci?

A

Neisseria
Moraxella
Thiomargarita Namibiansis

18
Q

Describe neisseria (3) ( contains what )

A

Diplococci
Found in human mucous membranes
Contains fimbraie & capsules

19
Q

What are the 2 pathogens for neisseria?

A

N. Gonorrhea
N. Meningitis

20
Q

What does n. Gonorrhea do in neisseria?

A

Gonorrhea

21
Q

What does n. Meningitides do in neisseria?

A

Cause meningitis

22
Q

What is the 2 moraxella? And what is it mainly know for?

A

Mainly know for
M. Lacunata conjunctivitis ( pink eye )

M. Caratrhails

23
Q

What does m. Catarrhalis do in moraxella ?

A

Cause ear infections

24
Q

What is thiomargarita nambiensis? (4)

A

Giant prokaryote
750 um in size
Discovered in the coast of namibia
Gets it’s energy from H2S

25
Q

What was recently found about thiomargarita ?

A

That the largest one is called thiomargarita magnifica
( 2 cm long )

26
Q

To conclude what are the 2 gram positive cocci?

A

Staphylococcus
Streptococcus

27
Q

To what are the 3 gram negative cocci?

A

Neisseria
Moxerlla
Thiomargarita

Microbiology Exam 2 (10 decks)

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