gram positive bacteria Flashcards
1
Q
how many species of staphylococci
A
40
2
Q
how is S. aureus spread
A
carriers and shedders
3
Q
virulence factors of s. aureus
A
-pore forming toxins
-proteases
-toxic shock syndrome
-protein a
4
Q
what does streptokinase do
A
break down clots
5
Q
similarities between + and -
A
cell membrane - phospholipid bilayer
6
Q
why is staph gram positive
A
it posesses catalase positive
7
Q
what does catalase do
A
catalyses h202 to water and o2
8
Q
how do you split up strept negative
A
alpha haemolytic
beta haemolytic
gamma haemolytic
9
Q
what does catalase split into
A
staph +
strep -
10
Q
structure of gram+
A
-spherical in shape
-cocci shape
-lack endospores
