Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/12

Click to flip

12 Cards in this Set

  • Front
  • Back
UTI in young ambulatory women is treated with Ampicillin, what is the org?
E.coli

bacteria produce and siderophore (Aerobactin) and a hemolysin suggesting the org scavenges iron from its human host
UTI in young ambulatory women is treated with Ampicillin, what is the org?
E.coli

bacteria produce and siderophore (Aerobactin) and a hemolysin suggesting the org scavenges iron from its human host
mycoplasm can be differentiated from L forms by...
DNA hybridization
results of disk diffusion assays...
small zone = resistant
large zone = sensitive

analysis of the disc will be helpful in determining alternative AB therapy
steps of the gram stain
1. crystal violet
2. rinse, iodine
3. rinse, alcohol
4. safranin
vancomycin...
blocks transglycosylation
is a glycopeptide antibiotic
acts on gRAM + CELLS
blocks transpeptidation

DOES NOT contain a B-lactam group
glycocalyx capsules..
can be made of polysacchride or polypeptide

slime layers have bacteria embedded in them

DO NOT form a matrix for biofilms
What does change of a pH indicator in a lab test indicate?
indicates that when an organism is grown in a sugar containing medium, pyruvate is reduced to an acid during NADH recycling
what do aminoglycosides do?
inhibit the formation of the initiation complex
Components of bacterial membranes
gram negative have porins in outer membrane

can have one leafelet made up of predominantly
phosphatidylethanolamine
and one made of mix of
phosphotidylethanolamine
phosphotidylglycerol

outer mebrane of gram neg can block the entry f drugs

DO NOT contain sterols
only staph aureus has protein A, what does it do?
contributes to its virulence by interfering with opsinization
What are Staph aureus toxins and what diseases do they mediate?
Enterotoxin --> food poisoning

Exfoliatoxin --> scalded baby syndrome

TSST-1 --> toxic shock syndrome

they are all SUPER ANTIGEN mediated

they are NOT inactivated by 30 min of boiling