GRAM + BACTERIA

Question 1

gram + has thick or thin cell wall layer ?

Answer 1

thiccc peptidoglycan layer and purple crystal violet stain

Question 2

list types of bacilli

Answer 2

corynebacterium spp
clostridium spp
listeria spp
bacillus spp

Question 3

cocci catalase + is

Answer 3

staphylococcus (clump together)

Question 4

cocci catalase - is

Answer 4

streptococcus (chain like)

Question 5

coagulase + is

coagulase - is

Answer 5

staphylococcus aureus +
staphylococcus epidermidis -(novobiocin sensitive)
staphylococcus saprophyticus _ (novobiocin resistant)

Question 6

streptococcus cat -:

a-hemolytic(green)

Answer 6

partially hemolysis

s. pneumoniae (optochin sensitive bile souluble capsule)
s. viridans, s.mutans,sanguis (optochin resistant bile insoluble no capsule)

Question 7

streptococcus cat - : 
b hemolytic (clear)

Answer 7

fully hemolysis

s. pyrogens (group A bacitaracin sensitive)
s. agalactiae (group B bacitracin resistant)

Question 8

streptococcus cat - :

y hemolytic

Answer 8

no hemolysis
enterococcus
e.faecalis
e.faecium

Question 9

catalse turns h2o2 > h20 + o2, when combine with h202 what happen ?

Answer 9

catalase + hv gas bubbles

catalase - no bubble

Question 10

staphylococcus aureus is catalase _____

Answer 10

+ and create gas bubble arrange in cluster, b hemolysis

Question 11

list s. aureus disease

Answer 11

endocarditis, osteomyelitis, scalded skin syndrome, toxic shock syndrome, food poisonin, wound infection, conjuctivitis pneumonia

Question 12

s. aurens virulence factors include :

Answer 12

CC PETA
catalase
coagluase -causes plasma to clot form wall
protein A -bind to igG
enterotoxin -watery nonbloddy diarhea acts as superantigen
toxic shock syndrome toxin -tampons users and patients w nasal packing to stop bleeding
exofoliatin-destroys desmosomes and causes seperation btween epidermis at granular cell
a toxin - necrosis of skin and hemolysis, cause gas gangrene

Question 13

s. epidermidis produce glyocalyx (biofilm) and treated w ?

Answer 13

vancomycin

Question 14

s. saprophticus transmitted thru and treated w ?

Answer 14

sexually and treated w quinolone ,TMP-SMX

Question 15

list streptococcus virulence factors

Answer 15

M protein -antiphagocytic cause rheumatoid fever, glomerulonephritis
erythrogenic roxin - causes scarlet fever
streptolysin o -antigenic and b hemolytic spesis
streptolysin s - not antigenic not inactive by o2
pygogenic exotoxin A - TSS
exotoxin b -necrotizing fascitis

Question 16

any bacteria that have capsule can cause _____

Answer 16

meningitis (hv + quielling reaction)

Question 17

list s. pyrogenes diseases

Answer 17

pharygitis
scatrlet fever -fever red rash caused by erythrogenic toxin
tss 
glomeruloneprhitis
rheummatic fever -cause endocarditis

Question 18

s. agalacticae most common disease ?

Answer 18

neonatal meningitis

neonatal sepsis

Question 19

a hemolytic : viridans streptoccoci causes

Answer 19

endocarditis, lung and brain abscesses

Question 20

s. pneumoniae is diploccoci a hemolytic (green) dieases include

Answer 20

meningitis, pneumonia , sinustisis , otitis media hv capsule

Question 21

gram + rod bacilli non spore forming aerobic includes ?

Answer 21

motile -L.monocytogenes
nonmotile - C.diptheriae
N asteroids

Question 22

L monocytogens causes

Answer 22

meningitis, renal transplant, cancer

Question 23

c diphetheriae charactereistics

Answer 23

chinese characters,club shaped, black colonies, gray pseudomembrane, lead to myocarditis

Question 24

bacillus cereus spore forming aerobic motile leads to food poisoning why ?

Answer 24

increase camp vomit, diarhea w the FRIED RICE and it is heat stable

Question 25

b. anthracis spore forming non motile aerobic toxin factors are ______

Answer 25

protective ag
lethal factor
edema factor hv black eschar

Question 26

b antracis diease is _____

Answer 26

woofsorter’s pneumonia in soldiers

Question 27

list spore forming anaerobic

Answer 27

motile - c tetani, c botulinum, c difficile

non motile - c perfringens

Question 28

c tetani exotoxin include

Answer 28

tetanospasmin, inhibits GABA, glycine

Question 29

c tetani dieases

Answer 29

lockjaw tetanus because it lead to spactic paralysis

Question 30

c botulinum virulence factor ?

Answer 30

neurotoxin that heat stable and block ach release

Question 31

c botulinum causes flaccid paralysis and common in ____ food

Answer 31

canned food

Question 32

c difficile cause diarhea and hv yellow plaques

Answer 32

trueee

Question 33

bacillus antracis causes

Answer 33

cutaneous anthrax

pulmonary antrax

Question 34

what looks like chinese letter ?

Answer 34

corneybacterium

Question 35

c perfringes cause food poisoning and main toxin is called______

Answer 35

lecithinase (gas gangrene)

Question 36

c tetani hv spore in soils, contaminated objects such screw causes ?

Answer 36

tetanuspasmin

Question 37

flacid paralysis causes by what organism

Answer 37

clostridium botulism

Question 38

2 types of toxin

Answer 38

emetic toxin

diarrhea toxin