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Micro-Organism
Characteristics
56
Microbiology
Graduate
09/02/2011

Additional Microbiology Flashcards

 


 

Cards

Term
Staphlococcus aureus: gram + or gram -
Definition
gram positive
Term
Escherichia coli: gram + or gram -
Definition
gram negative
Term
Salmonella typhimurium : gram + or gram -
Definition
gram - Enterobacteriaceae
Term

Characteristic:

LOS is readily shed from the bacteria as they grow

Definition
Neisseria sp.
Term
Gram-positive soil bacteria which form a highly resistant form of cells to permit them to live through harsh conditions: endospores?
Definition
Bacillus and Clostridium
Term
E. Coli
Definition
Facultative anaerobe
Term
Which bacterial use the Entner-Doudoroff Pathway instead of glycolysis.
Definition

Pseudomonas (gram negative rod)


and


Enterococcus faecalis (gram positive rod)

Term
Bacteria (2) which are products of Fermentation.
Definition
Steptococcus and Lactobacillus produce lactic acid
Term
Bacteria (2) which are enteric.
Definition
E. Coli and Salmonella
Term
Bacteria which produce H2, CO2, acetone, ethanol, butyrica acid, butanol, and isopropanol
Definition
Clostridium
Term
Bacteria which produce CO2, propionic acid?
Definition
Propionibacterium
Term

The most virulent bacteria found in the upper respiratory tract and skin of all warm-blooded animals?

 

Medically important

Definition
S. aureus
Term
Auramine O is used to detect this bacteria.
Definition
Mycobacteria tuberculosis
Term
Indian Ink (negative staining) outlies the thick carbohydrate capsule characteristic of this yeast.
Definition
Cryptococcus neoformins
Term
Acid fast is used to stain cells of this genus.
Definition
Mycobacterium and Nocardia and oocysts of certain protozoa
Term
Metachromatic staining of volutin is used to detect this bacteria.
Definition
Corynebacterium diphtheriae
Term
Bacteria grown on skim milk agar to promote development of the capsule of this bacteria.
Definition
Klebsiella pneumoniae
Term
Chocolate Agar is use to culture this species.
Definition
Neisseria and Haemophilus
Term
Lack catalase?
Definition
Streptococcus, Enterococcus, Clostridium
Term
Catalase test can be used to distinguish which bacteria?
Definition

Staphylococcus from Streptococcus

AND

Bacillus from Clostridium

 

Term
Important oxidase positive gram negative genera (2).
Definition
Pseudomonas and Neisseria
Term
Coagulase test is important for identification of virulence.  Which bacteria is the ost virulent>
Definition
Staphylococcus
Term
Group A strep suspected in step throat
Definition
Streptococcus pyogenes
Term
Sterotyping (use of antibodies) to detect O antigen of LPS
Definition
E.coli stereotype O157
Term
Used to show patterns of susceptibility to antibiotics?
Definition

Bacitracin susceptibility of Group A step

 

Novobiocine resistance of Staphyococcs saphrophyticus

Term
2 important catalase negative, gram-positive bacteria?
Definition
Streptococcus and Enterococcus
Term
Catalase positive bacteria
Definition
Staphylococcus spp.
Term

Catalase test is used to tell large rods apart,

which are they?

Definition

Bacillus (catalase positive)  AND

Costridium (catalase negative)

Term
Test which are used clinically and FDA approved to screen for STD's?
Definition

Neisseria gonorrhoeae and Chlamydia trachomatis

mycobacteria

group A Streptococcus

Term
Cells in clusters and catalase (+)
Definition
Staphyococcus
Term
Cells in pairs or chains and catalase (-)
Definition
Streptococcus
Term
Name gram-positive aerobic bacteria (3)?
Definition

Corynebacterium

Bacillus

Listeria

Term
Name gram-positive anaerobic rods?
Definition

Clostridim (spores)

 

Actinomyces (branching)

Term
Staphylococcus coagulase (+)
Definition
S. aureus
Term
Staphylococcus coagulase (-)
Definition

S. epidermidis

S. saphrophyticus

Term
Three categories of Streptococcus
Definition

beta hemolytic

alpha-hemoytic

non-hemolytic

Term
Sub-groups of beta-hemolytic
Definition

Group A (bacitracin S; Strep. pyogenes)

Group B (CAMP test)

Group C

Group D (enterococci)

Group G

 

Term
Sub-groups of alpha-hemolytic
Definition

Strep. pneumoniae (optochin S.)

Viridans strep. (optochin R)

Term
Sub-groups of non-hemolytic
Definition

anerobic strep (Peptostreptococcus)

some enterococci

Term
Stain poorly or not at all with Gram stain and are gram positive
Definition

Mycoplasm (no cell wall)

Mycobacterium (acid fast)

Term

Stain poorly or not at all with Gram

 

Borrellanegative cell wall structure

Definition

Spirochetes:

Treponema

Lapospira

 

AND

 

Rickettsia, Coxiella, Chlamydia (intracellular bacteria)

Term

Simple growth requirements of gram-negative,

aerobic, rods

Definition

lactose fermenters

lactose non-fermenters

others

Term
Name 2 lacotose fermenters
Definition
Escherichia and Keibsella (mucoid)
Term
Name 4 lactose non-fermenters
Definition

Salmonella

Shigella

Proteus (urease +)

Serratin (DNase +)

 

Term
Other gram-negative, aerobic, rods with simple growth requirements
Definition

Pseudomionas oxidase (+)

Vibrio (comma shape)

Term
Gram-negative aerobic, rods with fastidious growth requirements
Definition

Legionella (charcoal yeast agar)

Haemophilius (X and Y factors)

Bordatella (Bordet-Gengou agar)

Campylobacter (seagull shape, 43 oci)

Term
Gram-negative anerobic, rods
Definition

Fusobacterium

Bacteriodes

Term
Gram negative Cocci are defined as
Definition
cells in pairs and oxidase (+
Term
Examples of oxidase (+) gram-negative cocci
Definition

Neisseria

Moraxella

Term
Pasteurize to Remove pathogens name 3 examples
Definition

Mycobacterium bovis

Coxiela burnetii

 spoilage organisms

Term
Relative Susceptibility of Microorganism from most susceptible to most resistant
Definition

Enveloped virses

Gram-positive bacteria (most susceptible)

Nonenveloped viruses

Fungi

Gram-negative

Active stage protozoa (trophozoites)

Cysts of protozoa

Mycobacteria

Bacterial endospores (most resistant)

 

 

 

Term
What is the name of the commerical endospore used to test if an autoclave is working properly. 
Definition
Bacillus stearothermophilus
Term
Use to measure the effectiveness of dry heat sterilization
Definition
Bacillus subtilis (resistant to killing by dry air in contrast to B. Stearothermophilus)
Term
Amphyl is a disinfectant commonly used in biology and microbiology laboratories and effective against
Definition

Pseudomonas aeruginosa

Staphylococcus aureus

Salmonella choleraesusis

Mycobacterium tuberculosis

var bovis

enveloped viruses

Term
What is the reactivity of Chloroxylene (PCMX) against bacteria
Definition

less active against P. aeruginosa BUT

increase activity against Pseudomonas spp and other pathogens

 

Term
What bacteria easily grows in quats (household products), hot tubs, hospital tubing
Definition
Pseudomonas aeruginosa
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