Basic Bacteriology Flashcards

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1
Q

Which organism grow in chocolate agar ?

A

H-influnza

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2
Q

Which organism grow in thayer-martin agar?

A

Two types of nesseria

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3
Q

Which organism grow in bordet-gengou agar ?

A

Pertussis

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4
Q

Which organism grow in tellurie agar, loffler medium?

A

C. Diphtheria

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5
Q

Which organism grow in lowenstein-jensen agar ?

A

Tuberculosis

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6
Q

Which organism grow in Eaton agar ?

A

M.pneumonea

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7
Q

Which organism grow in MacConkey agar ?

A

Lactose-ferminting enterics

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8
Q

Which organism grow in eosin- methylene blue (EMB) agar ?

A

E.coli

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9
Q

Which organism grow in charocal yeast extract agar buffered with cystein and iron?

A

Legionella

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10
Q

Which organism grow in sabourand agar ?

A

Fungi

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11
Q

Which type of stains use for diagnosis of whipple disease ?

A

Periodic acid -schiff stain

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12
Q

Giemsa stain use for :

A

PCR-TB

  1. Chlamydia
  2. Borrelia
  3. Rickettsia
  4. Trypanosoma
  5. Plasmodium
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13
Q

Ziehl-neelsen stain (carbol fuchsin) use for:

A
  1. Acid fast bacteria ( eg, TB, nocardia)

2. Protozoa (eg, cryptos-poridium oocytes)

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14
Q

Indian ink stain use for :

A

Cryptococcus neoformans

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15
Q

Silver stain use for :

A
  1. Legionella
  2. Fungi
  3. H.pylori
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16
Q

Obligate intracellula bacteria:

A
  • ** CCR
    1. Rickettsia
    2. Chlamydia
    3. Coxiella
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17
Q

Facultative intracellular bacteria

A
  • LLMYS-NB
    1. Salmonella
    2. Nesseria
    3. Brucella
    4. Mycobacterium
    5. Listeria
    6. Legionella
    7. Yerisina
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18
Q

Encapsulared bacteria

A
  • Please SHINE my SKiS:
    1. P- Pseudomonas
    2. S-streptococcus pneumonia
    3. H+I H-Influnza
    4. N-Nesseria
    5. E- E.coli
    6. S- Salmonella
    7. K-Klebsiella
    8. S-Streptococci grop B
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19
Q

Function of bacteria capsule

A

Anti-phagocytic virulence factor

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20
Q

Urease (+) organism :

A
  • Pee CHUNKSS:
    1. P-proteus
    2. C-Cryptococcus
    3. H-H.pylori
    4. U- Ureaplasma
    5. N-Nocardia
    6. k-Klebsiella
    7. S-S.epidermidis
    8. S-S. saprophyticus
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21
Q

In vivo bifilm producing bacteria :

A
  1. S.epidermidis
  2. S.viridans
  3. Pseudomonas
  4. Nontypeable H-influnza
22
Q

Which bacteria produce protein A?

A

S.aureus

23
Q

Which bacteria produce IgA protease ?

A

SHiN

  1. S.pneumonea
  2. H-influnza
  3. Nesseria
24
Q

Which bacteria produce M-protein ?

A

Group A streptococci ( S. pyogenes )

25
Q

Which bacterial virulence factor bind to Fc region of IgG, and prevent opsonization and phagocytosis?

A

Protein A

26
Q

Which enzyme that cleaves IgA, allowing bateria to adhere to it, and colonize mucus membrabne ?

A

IgA protease

27
Q

Which bacterial virulence factor help in prevent the phagocytosis and shares similar epitopes to human cellular protein ( molecular mimicry) and seen in acute reumatic fever ?

A

M-protein

28
Q

What’s the needle-like protein appendage facilitaing direct delivery of toxins from gran (-) bacteria to eukaryotic host cell ?

A

Type 3 secretion system” injectisome”

29
Q

Their’s two structures in the bacteria that responsible for delivery the bacterial component, what are thay ?

A
  1. Injectisome

2. Sex pilli

30
Q

Transporting of DNA from bacteria to another by:

A

Sex pilli

31
Q

Transporting of toxin from bacteria to human by :

A

Injectisome

32
Q

Exotoxin that inhibit protein synthesis :

A
  1. Diphtheria toxin
  2. Exotoxin A
  3. Shiga toxin
  4. Shiga-like toxin
33
Q

Exotoxin that increase fluid secretion :

A
  1. Heat-labile toxin
  2. Heat -stable toxin
  3. Edema toxin
  4. Cholera toxin
34
Q

Exotoxin that inhibit phagocytosis :

A

Proteussis toxin

35
Q

Phagocytability decrease by :

A
  1. Protein A

2. Protein M

36
Q

Exotoxin that inhibit on neurotransmittier:”

A
  1. Tetansospasmin

2. Botulinum toxin

37
Q

Exotoxin that lyse cell membrane :

A
  1. Alpha toxin

2. Streptolysin O

38
Q

Exotoxin that superantigen cause shock :

A
  1. Toxic shock syndrome toxin

2. Exotoxin A

39
Q

Different between toxic shcok and septic shock:

A

Septic shock : shock + fever.

Toxic shock : shock + fever + rash .

40
Q

Lipopolysacchride that found in:

A

outer membrane of gram (-) bacteria

41
Q

(LPS) coposed of:

A
  1. Lipid A (endotoxin)
  2. Core polysacchride
  3. O antigen
42
Q

Three main effects of endotoxin :

A
  1. Macrophage activation
  2. Complement activation
  3. Tissule factor activation
43
Q

All gram (+) bacteria don’t have endotoxin except:

A

Listeria

44
Q

Macrophage activiation lead to

A

Septic shock : fever, hypotension

45
Q

Complement activation lead to :

A
  1. Histamin release: hypotension +edema.

2. Neutrophil chemotaxis

46
Q

Tissue factor activation lead to :

A

DIC

47
Q

Why their’s no vaccine available aginst endotoxin ?

A

Due to the structure of the endotoxin doesn’t contains protein, therfore immune system can’t produce antibodies aginst it .

48
Q

Spore forming bacteria:

A
  1. Anthracs

2. Clostridum

49
Q

In which phase the spore forming bacteria form the sporess ?

A

At the end of stationary phase

50
Q

Encapsulated bacterial vaccine :

A
  1. Pneumococcal vaccine
  2. H-influnza vaccine
  3. Meningiococcal vaccine