Lecture 16: Phylogenetic Diversity of Bacteria

Question 1

major linages of bacteria assumes ( )

Answer 1

common ancestor

Question 2

how many phyla are there

Answer 2

4

Question 3

what is the largest & most diverse phyla

Answer 3

proteobacteria

Question 4

what type of bacteria is proteobacteria

Answer 4

gram negative

Question 5

what are the 6 classes that proteobacteria is divided into?

Answer 5

1. alpha
2. beta
3. delta
4. gamma
5. epsilon
6. zeta

Question 6

what type of infection do alphaproteobacteria cause

Answer 6

intracellular infection

Question 7

most aerobes in alphaproteobacteria are

Answer 7

obligate or facultative

Question 8

what type of bacteria are oligotrophic

Answer 8

alphaproteobacteria

Question 9

oligotrophic

Answer 9

grow at low nutrient concentrations

Question 10

what does Rickettsia cause?

Answer 10

causes Typhus

Question 11

Typhus

Answer 11

rocky mountain spotted fever

Question 12

how is Rickettsia transmitted

Answer 12

through ticks, fleas, lice & mites

Question 13

does Rickettsia have cell walls?

Answer 13

yes

Question 14

where does replication of Rickettsia occur

Answer 14

cytoplasm

Question 15

what is the 3rd largest class of proteobacteria?

Answer 15

Betaproteobacteria

Question 16

what is the major order of Betaproteobacteria?

Answer 16

Neisseriales

Question 17

what is the major order of Alphaproteobacteria?

Answer 17

Rickettsiales

Question 18

Niesseria shape

Answer 18

cocci

Question 19

what pathogen is associated with Niesseria

Answer 19

meningitides

Question 20

what is the largest & most diverse class of proteobacteria

Answer 20

gammaproteobacteria

Question 21

Enterobacteria

Answer 21

enteric bacteria

Question 22

what 3 acids are involved in mixed-acid fermentation

Answer 22

acetic, lactic & succinic

Question 23

what does Escherichia effect?

Answer 23

warm blooded animals

Question 24

what does salmonella cause

Answer 24

typhoid fever & gastro

Question 25

what does shigella cause

Answer 25

bacillary dysentery

Question 26

what does proteus cause?

Answer 26

UTI

Question 27

where are enterobacteria aerogenes found?

Answer 27

water & sewage

Question 28

where is Klebsiella found?

Answer 28

soil & water

Question 29

where is serratia found?

Answer 29

water, soil & intestinal tracts

Question 30

what is P. aeruginosa associated with

Answer 30

urinary & respiratory diease

Question 31

Pseudomonadales vs Vibrionales

Answer 31

P- oxidase & catalase positive V- Oxidase positive only

Question 32

V. Cholera

Answer 32

causes water borne disease in humans not hosts

Question 33

what does V. parahaemolyticus cause

Answer 33

causes gastro

Question 34

T or F: Tenericutes lack cell walls

Answer 34

True

Question 35

lactic acid bacteria

Answer 35

fermentative bacteria that produce lactic acid

Question 36

aerotolerant anaerobes

Answer 36

not sensitive to oxygen

Question 37

Homofermentative

Answer 37

produce only lactic acid

Question 38

Heterfermentative

Answer 38

produce ethanol, CO2 & lactate acid

Question 39

what do clostridium lack?

Answer 39

respiratory chain

Question 40

what do saccharolytic do

Answer 40

ferment sugars

Question 41

what do proteolytic do

Answer 41

ferment amino acids

Question 42

what are the smallest organisms

Answer 42

mollicutes/mycoplasmas

Question 43

lipoglycan functions

Answer 43

stabilize cytoplasmic membrane & facilitate attachment

Question 44

what shape is actinobacteria

Answer 44

rod-shaped

Question 45

what are the 6 steps of the infection cycle of a chlamydia

Answer 45

1. attack 2. phagocytosis 3. conversion 4. multiplication 5. conversion to elementary body 6. release

Question 46

what is an example of a non-spore forming firmicute

Answer 46

staphlyococcus

Question 47

what is an example of a spore forming firmicute

Answer 47

Bacillius

Question 48

what type of bacteria are firmicutes

Answer 48

gram positive

Question 49

what are firmicutes

Answer 49

endospore formers

Question 50

do mycoplasmas have a cell wall?

Answer 50

no