reintroduction to microbiologie Flashcards
1
Q
microorganisms
A
Eukaryotes
- protozoa
- fungi
prokaryotes - bacteria
viruses
prions
2
Q
protozoa
A
unicellular eukaryotes
often affect immunocrompomised
many free living
3
Q
funig
A
eukaryotic different froms external rigid wall of chitin filamentous or yeast forms dimorphic if display different forms
4
Q
bacteria cellular forms
A
cocci diplococci tetrags sarcina streptococci staphylococci bacilli extended irregular rods kidney bean corkscrew helical
5
Q
gram +/-
A
Gram + - purple - retain gram stain - 1 membrane - peptidoglycan outer layer i.e. cell wall Gram – - pink - 2 membranes - inner and outer membrane - periplasmic space between - LPS on the outside
6
Q
peptidoglucan
A
- polymer of N acetyl muramic acid and N acetyl glucosamine
- crosslinked via amino acid pentapeptides and anchored to cell wall
7
Q
pili and fibriae
A
- proteinaceous filamentous structures
- often used for attachment to host cells or surfaces
8
Q
pathogen
A
disease causing bacteria
9
Q
opportunistic
A
commensals that sometime cause disease
10
Q
e coli
A
gram - rod
commensal
11
Q
bacteriodes
A
gram - anaerobic bacilli
12
Q
clostirdal
A
gram + anaeboic spore forming bacilli
13
Q
mycobacteria
A
thick cell wall of mycolic acid (waxy nature)
ziehl Nielsen stain red
cannot be stained with gram +/- stain
14
Q
chlamydia
A
obligaet
gram - cell wall
15
Q
viruses
A
obligate intracellular paracites
viral genome uses host to encode viral protiesn
