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Bacteria Flashcards

1
Q

PT has swelling of submandibular, tenderness. Patient is alcoholic. Radiographic-mass radiopaque circumscribed 1x1cm . what’s the reason?

A

Bacterial infection

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2
Q

What’s the action of pilli in organisms pathogenicity?

A

Attachment & adherence to host cells

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3
Q

What’s the difference between staph & strep?

A

Catalase enzyme

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4
Q

Lancefield is determined by?

A

C-carb composition of cell wall

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5
Q

What does streptomycin inhibit?

A

Protein production (translation)

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6
Q

what aspect of Staph s responsible for food poisoning?

A

Enterotoxin

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7
Q

MOA of staph aureus for drug resistance?

A

Produce enzymes that breaks down penicillin, beta lactamase

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8
Q

What bacteria causes endocarditis in IV DRUG users?

A

Staph Aureus

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9
Q

What’s the most common type of endocarditis?

A

Streptococcus viridian (alpha-hemolytic )

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10
Q

Which disease has Janeway Lesions?

A

Infective endocarditis

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11
Q

Which toxin produces scarlet fever?

A

Erythrotoxin

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12
Q

Rash for Scarlett Fever is cause by?

A

Ertyrhogenic Toxin of Group A beta hemolytic S.Pyogenes

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13
Q

Dextrans is produced by?

A

Dextran: linked in alpha 1,6 linkage

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14
Q

What enzyme do oral bacteria use to create dextran & participates in bacterial aggregation on teeth?

What enzyme primarily break down sucrose?

A

Glucosyltransferase

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15
Q

Dextans for polymers of?

A

Glucose

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16
Q

HOw is glucose and fructose associated with caries?

A

Dextrans & levans

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17
Q

Which of the following is not an oral bacterium & not found in dental plaque?

A

S. pyogenes

18
Q

Which of the following doesn’t cause penumonia?

A

S. mutans

19
Q

What’s the most common bacteria on the dorsum of the tongue?

A

S. salivarius

20
Q

N-Muramic acid is part of?

A

Bacterial cell wall

21
Q

What does glycan binds to in bacterial cell wall?

A

D-alanine

22
Q

Rickettsia is a ?

A

Typhus

23
Q

Rickettsia disease are destructive for?

A

Endothelial cells of capillaries

24
Q

Which one needs arthropods vector?

A

Rickettsia EXCEPT COX BURN

25
Q

Weil felix test is for?

A

Ricketssia

26
Q

Which is not from a flea/insect bite?

A

Q fever

27
Q

The toxin of gas gangrene organisms has what kind of enzymatic activity?

A

Lipase lecithinase

28
Q

MOA of tetanus toxin?

A

Inhibition of NT release (prevent release of GABA & glycine)

29
Q

OVer-treating with antibiotics, C. dfifficiles, would show?

A

Pseudomembranous colitis

30
Q

What is used to treat with Clostridium difficiles’s diarrhea & intestinal colitis?

A

Clindamycin

31
Q

What are 2 pore-forming bacteria?

A
  1. Clostridium

2. Bacillus

32
Q

What ion is related to spores?

A

Calcium dipicolinic (heat resistance of the endospores)

33
Q

What organism has mycolic acid that block antibiotics from penetrating?

A

Mycobacterium tuberculosis

34
Q

What organism is mainly found in AC condition systems?

A

Legionnaires pneumophila

35
Q

An infection of the epithelial cells of the eye that can sometimes enter back into the nasopharynx?

A

Trachoma due to chlamydia trachomatis

36
Q

Blindiness results from?

A

Chlamydia trachomatis

trachoma & adult inclusion conjunctivitis

37
Q

What’s the most common cause of non-gonoccoal urethritis?

A

Chlamydia

38
Q

Which produces these toxins: PA, EF, LF?

A

Bacillus anthracis

39
Q

What test is used for syphilis’s not painful chancre?

A

Wassermann test

Dark field microscopy

40
Q

What protozoa are spread in cat feces?

A

Toxoplasma gondii

41
Q

What is a sign of congenital syphilis infection?

A

Hutchinson’s incisors

;) (24 decks)

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