Microbial classification Flashcards
1
Q
4 general classes of microorgs.
A
- bacteria
- virus
- fungi
- parasites
2
Q
what can be seen with what
A
light microscope for everything but viruses, some fungi and parasites with naked eye
3
Q
features of a bacteria
A
- single celled
- prokaryote
- strong wall of proteoglycan
- no membrane bound organelles or nucleus
4
Q
3 basic divisions of bact
A
- gram stain
- aerobic/anaerobic - tolerance of O2
- shape
5
Q
features of pos and neg gram stain
A
pos - has thick cell wall
neg - thin call and extra layer of membrane
6
Q
2 basic shapes of bact.
A
- cocci
2. bacilli - rods
7
Q
2 types of cocci
A
- chains
2. clusters
8
Q
4 types of aerobes
A
- strict aerobes - depend on aerobic resp
- facultative aerobes - can use both
- mircoaerophilic - depend on aerobic resp., but killed by too much O2
- aerotolerant - uses anaerobic resp, but can tolerate O2
9
Q
one type of anaerobe
A
strict - uses anaerobic resp and killed by O2
10
Q
4 types of atypical bact
A
- intracellular
- lack rigid cell wall
- acid-fast
- spirochetes
11
Q
3 Gram+ O2 Cocci
A
- staphylococcus
- streptococcus
- enterococcus
12
Q
2 Gram+ O2 bacilli
A
- cornybacterium
2. bacillus
13
Q
1 Gram+ anO2 bacilli
A
clostridium
14
Q
2 Gram- O2 Cocci
A
- neisseria
2. haemophilius
15
Q
1 gram- O2 bacilla
A
E coli
