Biol-6 Lab Test 3

Front 1

T/F

Staphylococcus is responsible for pathogenic and nonpathogenic organisms

Back 1

True

Front 2

T/F

S. epidermis is responsible for UTI's.

Back 2

False.

S. saprophyticus is responsible for UTI's.

S. epidermidis is responsible for skin lesions and endocarditis.

Front 3

S. aureus are often associated with the formation of _____

Back 3

abcesses

Front 4

Name the S. aureus internal infections

Back 4

pneumonia, osteomyelitis, endocarditis, cystitis, pylenephritis, staphylococcal endocarditis, and septicemia.

Front 5

Name the metabolic products of S. aureus.

Back 5

coagulase, leukocidin, hemolysins, enterotoxin, DNase, lipase, gelatinase, staphylokinase

Front 6

This medium is selective for salt tolerant organisms

Back 6

Mannitol Salt agar.

Front 7

Differentation of of staphylococci is predicated by _____

Back 7

the fermentation of mannitol

Front 8

Mannitol fermenting organisms exhgibit a ____ halosurrounding their growth.

Back 8

yellow

Front 9

Production of coagulase is indicative of an ______ strain.

Back 9

S. aureus

Front 10

Clot formation within _ hours is indicative of a positive result of a virulent S. aureus strain.

Back 10

4 hours

Front 11

Generally, coagulase positive staphylococci also produce the hydrolytic enzyme ___

Back 11

DNase

Front 12

DNase cultures capable of DNA hydrolysis will show a ___ ___ halo around the area of growth

Back 12

rose pink

Front 13

_____ is responsible for a greater number of infectious diseases than any other group of microorganisms.

Back 13

Streptococcus

Front 14

Strep forms ____ ___ ___ colonies forming chains

Back 14

circular, translucent, pinpoint

Front 15

Alpha hemolysis is _____ hemolysis

Back 15

incomplete

Front 16

Strep viridans is responsible for _______

Back 16

subacute endocarditis

Front 17

____ _____ is the causitive agent of lobar pneumonia

Back 17

Strep pneumoniae

Front 18

___ hemolysis is the complete destruction of red blood cells

Back 18

Beta

Front 19

_____ hemolysis is the absence of any hemolysis around the colony

Back 19

Gamma

Front 20

Lancefield classified the streptococci into __ serogroups

Back 20

20

Front 21

Beta-streptococci belonging to Group _ are of prime importance to humans

Back 21

A

Front 22

Streptococci are classified according to their antigenic group-specific hapten called ___ ____

Back 22

C-substance

Front 23

Group A beta-hemolytic streptococci are collectively referred to as _____ _____

Back 23

streptococcus pyogenes

Front 24

Strep pyogenes are responsible for infections such as what?

Back 24

tonsilitis, bronchopneumonia, scralet fever, eryspelas, cellulitis, glomerulonephritis, rheumatic fever.

Front 25

B-hemo strep are indiginous to the ___ mucusa

Back 25

vaginal

Front 26

Group B strep pyogenes are responsible for...

Back 26

puerperal fever, neonatal meningitis, endocarditis.

Front 27

Group C strep pyogenes are responsible for...

Back 27

eryspelas, puerperal fever, throat infections

Front 28

Streptococci produces the following metabolites....

Back 28

hemolysins (Alpha+Beta), leukocidins, erythrogenic toxin (cause of scarlet fever), hyalronidase (spreading factor), streptokinase (a fibrinolysin), and nucleases (destroy viscous tissue debris)

Front 29

T/F

Group A strep displays an absense of a zone of inhibition in the bacitracin test.

Back 29

True

Front 30

Group A strep displays an agglutination with the directigen test

Back 30

True

Front 31

Group B strep is identified with the ____ test

Back 31

CAMP

Front 32

Enterococci can be differentiated from nonenterococci with the ____ ___ test by the ability of entero to grow in this medium.

Back 32

6.5% NaCl test

Front 33

Bile esculin test. Group D strep hydrolyzes glycoside esculin to produce....

Back 33

brown to black coloration following incubation

Front 34

T/F

E. faecalis produces a clear/yellow color on the medium CAMP test.

Back 34

False.

Brown/black growth occurs.