micro. ch.11 Flashcards Preview

Uncategorized > micro. ch.11 > Flashcards

Flashcards in micro. ch.11 Deck (42)
Loading flashcards...
1
Q

domain bacteria

A

species can cause disease in humans animals or other organisms.

2
Q

Proteobacteria

A

Proteus- assume many shapes
Gram negative
chemoheterotrophic bacteria
divide into α, β, χ, δ, ε

3
Q

Alphaproteobacteria

A
Gram negative
some have (Prosthecae) stalks or buds that increase surface area for absorption
4
Q

Rickettsia

A

Alphaproteobacteria
Human pathogen
__Arthropod-borne__
obligate intracellular parasites- repr. only inside mammal cell.

5
Q

Caulobacter

A

Alphaproteobacteria
have Prosthecae
stalked bacteria found in lakes

6
Q

Hyphomicrobium

A

Alphaproteobacteria
have Prosthecae
budding bacteria found in lakes

7
Q

Gammaprobacteria

A

largest subgroup
Pseudomas aeruginosa
Coxiella
Enterobacteriales (enterics)

8
Q

Pseudomonas aeruginosa

A

Gammaprobacteria
aerobic, G-, motile by polar flagella
Fluorescent opportunistic pathogen, Polar flagella
large genome synthesizes Ez for large # of substrates ( grown on minute C source, 1out of 10 hospital infections.

9
Q

Coxiella

A
Gammaprobacteria
require mammalian host cell to repr.
once thought to be Rickettsia. 
Not transmitted by insects
Q fever transmitted by milk or aerosols
10
Q

Enterobacteriales (enertics)

A
Gammaprobacteria
inhabit intestinal tracts of humans and animals
Peritrichous flagella motile, all facultative anaerobes
-Enterobacter
-Escherichia
-Klebsiella
-Proteus
-Salmonella
-Serratia
-Shigella
-Yersenia
11
Q

Escherichia

A

Gammaprobacteria- Enterobacteriales
specie-Escherichia Coli
most comma intestinal inhabitants.
usually not pathogenic

12
Q

Shigella

A

Gammaprobacteria- Enterobacteriales
responsable for bacillary dysentery disease (shigellosis)
only found in humans

13
Q

Klebsiella

A

Gammaprobacteria- Enterobacteriales
genus klebsiella
species: Klebsiella pneumoniae
found in water and soil

14
Q

Serratia

A

Gammaprobacteria- Enterobacteriales
Serratia marcescens
produces red pigmentation

15
Q

Proteus

A

Gammaprobacteria- Enterobacteriales
Swarmer type of growth on agar
swarmer cells with many flagella revert to normal cell w/few flagella, reduce motility

16
Q

Yersinia

A

Gammaprobacteria- Enterobacteriales
Yersinia Pestis causes plague
black death of Europe

17
Q

Entrobacter

A

Gammaprobacteria- Enterobacteriales
species: E. Cloacae & E.aurogenes
cause (UTI) urinary track infection & hops. infections

18
Q

Salmonella

A
Gammaprobacteria- Enterobacteriales
genus: Salmonella 
pathogenic 
S. enterica has>2400 serovars ( seroligical varieties) aka serotype
S. enterica serovar Typhimurium
19
Q

Epsilonproteobacteria

A

slender Gram- bacteria rods helical or curved
flagella motile
microaerophilic

20
Q

Helicobacter pylori

A

Epsilonproteobacteria
peritrichous flagella, most common cause of peptic ulcers
also cause stomach cancer
microaerophilic

21
Q

Non-Protoebacteria

A

Gram- bacteria
Cyanobacteria
Clamydia

22
Q

Cyanobacteria

A

Non-Protoebacteria
Gram -
(oxygenic Phototrophs): oxygenic Photosynthesis

23
Q

motile spirochaetes

A

Non-Protoebacteria
motile Chemotrophs
spirochetes-axial filament, not a flagella

24
Q

Chlamydia

A

Non-Protoebacteria
Non motile
no peptidoglycan in cell walls.
once classified with Rickettsia ( no insect vector), elemental body is the “infective agent”

25
Q

Gram possitive

A

divided in to 2 groups
high G+C ratio
low G+C ratio

26
Q

Firmicutes

A

Gram+

Low G+C bacteria

27
Q

Gram positive Bacteria

A
(Firmicutes)
Clostridales
Bacillales; Bacillus
staphylococcus
Lactobacillales
Streptococcus
Mycoplamatales
28
Q

Clostridales

A

(Firmicutes)
Gram+ endospore forming rod: obligated anaerobes
Clostridium tetani=tetanus

29
Q

Bacillales

A

(Firmicutes)
endospores producing rods and cocci
Bacillus

30
Q

Bacillus cereus

A

Bacillus

Food poisoning in starchy food (rice)

31
Q

B. anthracis

A

Bacillus
causes anthrax
common in soil

32
Q

B. thuringiensis

A

Bacillus

microbial insect pathogen

33
Q

Staphylococcus

A

Bacilalles

cocci, facultative anaerobes, yellow pigmented colonies

34
Q

S. aureus

A

Staphylococcus
wound infection in hospitals, toxic shock syndrome, high fever and vomiting, endotoxin, most common cause of food poisoning

35
Q

Lactobacillales

A

Genus: Lactobacillus
generally aerotolerant anaerobes,
most lack ETC (cytochrome system)

36
Q

Streptococcus

A

Genus: Lactobacillus

responsable for illness & greater variety of disease than any other bacteria

37
Q

Mycoplamatales

Micoplasms

A

lack cell wall (resemble fungi), pleomorphic,
pass thru filters that retain bacteria
first tough to be viruses
smallest replicating organism capable of cell free existence.

38
Q

Actinobacteria

A

High G+C gram+ bacteria
Actino=ray, or starlike, form of growth
branching filaments

39
Q

Gardnerella

A

Actinobacteria

Gardnerella vaginalis- most common form of vaginitis

40
Q

mycobacterium tuberculosis

A
Actinobacteria
aerobic
myco- fungus like 
fillamentous growth 
acid fast stain if suspect these pathogens
41
Q

Mycobacterium leprae

A

Actinobacteria

acid fast stain

42
Q

Domain Archaea

A

some gram-, some gram+
some by binary fusion
some by fragmentation or budding
extreme acidophile, thermophiles, halophiles