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RWJ Microbiology > Gram + and Gram - Cocci > Flashcards

Gram + and Gram - Cocci Flashcards

Dr. Kaul

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Biology 101 flashcards
1
Q

Staphylococci, Streptococci, and Enterococci are all Gram _____

A

Positive

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2
Q

3 Main Gram + Cocci

A
  1. Staphylo
  2. Strepto
  3. Entero
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3
Q

When comparing Staph and Strepto with a catalase test, you would expect _____ to bubble because they express Catalase

A

Staph

Staff members drink that bubbly

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4
Q

Two types of Staph

A
  1. Coagulase positive

2. Coagulase Negative

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5
Q

Staph _____ is Coagulase positive

A

Aureus

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6
Q

The bacteria _____ _____ anti-opsonizes with Protein A binding the Fc region, Cytotoxins to wreck cell membranes, and Superantigen Exotoxins to over-activate T-cells

A

S. Aureus

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7
Q

The most common clinical presentation of Staphylococcal infections is _____

A

Skin & Soft Tissue Infections (SSTIs)

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8
Q

Desquamation is a common clinical outcome of the exotoxin _____ produced by S aureus

A

TSST-1

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9
Q

_____ is first line treatment for MRSA infections

A

Vancomycin

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10
Q

Staph _____ is frequently involved in Catheters or IV lines

A

Epidermidis

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11
Q

To distinguish Staph Epidermidis from Saprophyticus you would realize that Saprophyticus is resistant to _____

A

Novobiocin

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12
Q

Staph _____ normally causes UTIs and cystitis in women

A

Saprophyticus

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13
Q

Blood plate Beta-Hemolysis

A

Complete Erythrocyte destruction showing yellow

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14
Q

Blood plate Alpha-hemolysis

A

Partial Erythrocyte destruction showing green

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15
Q

Blood plate Gamma-Hemolysis

A

No Hemolysis

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16
Q

3 Over-arching types of Strep

A

Beta, Alpha, Gamma Hemolytic

17
Q

S. Pyogenes and S. agalactiae are both ______ Hemolytic type of Strep

A

Beta

18
Q

S. Pneumoniae and Viridans are both _____ Hemolytic type of strep

A

Alpha

19
Q

Name two Beta-Hemolytic Streptococcus

A
  1. S. Pyogenes (bacitracin sensitive)

2. S. Agalactiea (bacitracin resistant)

20
Q

M-protein is found on _____ _____

A

Strep Pyogenes

21
Q

Group A Strep’s protein _____ can cause Heart/joint Acute Rheumatic Fever and Kidney: Acute Poststrep Glomerulonephritis

A

M

22
Q

To treat Group A Strep, you can use the common antibiotic _____

A

Penicillin

23
Q

S. Agalactiae is Group B and found in female reproductive tract and to distinguish it you would realize that it would be unaffected by the drug _____, whereas Group A would.

A

Bacitracin

24
Q

Name 2 Alpha Hemolytic Streps

A
  1. Pneumoniae (Optochin sensitive)

2. Viridans

25
Q

Streptococci ____ is actually multiple bacteria that live in the mouth and are usually harmless

A

Viridans

26
Q

S. Pneumoniae is able to escape the immune system due to its _____ _____

A

Polysaccharide Capsule

27
Q

To differentiate between Strep Pneumoniae and Viridans you realize that Pneumoniae gets wiped out by the medicine _____, whereas Viridans won’t

A

Optochin

28
Q

Strep ____ is part of the normal GI flora

A

Bovis

29
Q

S. Bovis is ____ Hemolytic and can be associated with GI malignancy

A

Gamma

30
Q

2 main types of Enterococci (Group D)

A
  1. Faecalis

2. Faecium

31
Q

Bile Esculin positivity is a characteristic feature of Group D Streptococci and ______

A

Enterococci

32
Q

To differ Enterococci from Streptococci allow Enterococci to grow in ______ Broth

A

NaCl

33
Q

Name the two Gram Negative Cocci

A
  1. Neisseria Gonorrhoeae

2. Neisseria Meningitidis

34
Q

The Gram negative _____ are normally diplococci and UNencapsulated

A

Neisseria

35
Q

Meningococci vs gonoccci

A

Meningococci are encapsulated

36
Q

Thayer-Martin Medium contains antimicrobial agents that suppresses normal flora and allow _____ _____ to grow

A

Neisseria Gonorrhoeae

RWJ Microbiology (24 decks)

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