Block B 2 Flashcards

gram-negative bacteria (40 cards)

1
Q

5 classes of proteobacteria

A

alpha
beta
delta
gamma
epsilon

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2
Q

major lineage (phylum) of bacteria

A

proteobacteria

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3
Q

6 major orders of alphaproteobacteria

A

rhizobiales
rickettsiales
rhodobacterales
rhodospirillales
caulodobacterales
spingomonadales

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4
Q

shape of rickettsiales

A

small, coccoid or rod shaped

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5
Q

what type of parasites are rickettsiales

A

obligate intracellular

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6
Q

2 diseases that rickettsiales are causative of

A

typhus
rocky mountain spotted fever

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7
Q

sphingomonadales sub bac.

A

micavibrio -the vampire bug
sphingomonas

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8
Q

what type of bacteria is included with rhodobacterales

A

purple non sulfur bacteria
aerobic anoxygenic phototrophs
N fixing bacteria

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9
Q

what is the largest and most metabolically diverse order

A

rhizobiales

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10
Q

how many genera contain rhizobia

A

9

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11
Q

what major order contains phototrophs, chemolithotrophs, symbionts, N fixing bacteria, and pathogens

A

rhizobiales

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12
Q

6 major orders of betaproteobacteria

A

burkholderiales
hydrogenophilales
methylophilales
niesseriales
nitrosomonadales
rhodocyclales

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13
Q

what major order of betaproteobacteria all grows aerobically

A

burkholderia

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14
Q

what major order of betaproteobacteria grow best as photoheterotroph

A

rhodocyclus

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15
Q

what produces a thick capsule and is important in wastewater treatment

A

zooglea

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16
Q

what strain of meningococcus causes meningitis

A

neisseria meningitidis

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17
Q

what shape is chromobacterium

18
Q

what is the pigment that some species of chromobacterium produce

19
Q

what eqn is very important in managing ammonia levels in waste water

A

nitrosomonas + nictrobacter = nitrification

20
Q

what is enteric bacteria

A

phylogenetic group within gammaproteobacteria

21
Q

what do enteric bacteria do with sugars

A

ferment sugars to a variety of end products

22
Q

what are the two broad categories that enteric bacteria are separated into

A

mixed acid fermenters
2,3-butanediol fermenters

23
Q

shape of e.coli

A

straight rods

24
Q

what group can escherichia and salmonella and shigella be categorised into

A

mixed acid fermenters

25
what is salmonella usually categorised immunologically by
surface antigens
26
applications of E.coli in biotechnology
recombinant proteins biofuels synthetic biology
27
what temp does E.coli grow at
37 degrees
28
doubling time of E.Coli
20 mins
29
2 examples f butanediol fermenters
enterobacter klebsiella
30
where is enterobacter found and what can it cause
water, sewage, IT tract of warm blooded animals UTI
31
where is klebsiella found and what can it occasionally cause
soil and water pneumonia
32
what can be said about oxidase and catalase qualities of pseudomonadales
both positive
33
shape and oxidase properties of vibrionales
positive curved rods
34
what does vibrio spp. do to cause diarrhea
adheres to gut wall and secretes a toxin
35
how many A and B subunits make up vibrio spp.
1 A 5B
36
4 stages leading to cholera
-B adheres to intestinal epithelial cell s -A translocated into host cell -activates adenylyl cyclase leading to ^ cAMP levels -leads to ion imbalance and diarrhea
37
what can be said about sulphate and sulfur with delta and epsilonproteobacteria
reducers
38
out of the following epsilonproteobacteria what is pathogenic campylobacter, sulfurospirillum, and helicobacter
campylobacter and helicobacter
39
incubation period of campylobacter jejuni
1-11 days
40
reservoir of campylobacter jejuni
GI tract of birds