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BM211 microbiology > Block B 2 > Flashcards

Block B 2 Flashcards

gram-negative bacteria

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

A

rod shaped

18
Q

what is the pigment that some species of chromobacterium produce

A

violacein

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
Q

what is salmonella usually categorised immunologically by

A

surface antigens

26
Q

applications of E.coli in biotechnology

A

recombinant proteins
biofuels
synthetic biology

27
Q

what temp does E.coli grow at

A

37 degrees

28
Q

doubling time of E.Coli

A

20 mins

29
Q

2 examples f butanediol fermenters

A

enterobacter
klebsiella

30
Q

where is enterobacter found and what can it cause

A

water, sewage, IT tract of warm blooded animals
UTI

31
Q

where is klebsiella found and what can it occasionally cause

A

soil and water
pneumonia

32
Q

what can be said about oxidase and catalase qualities of pseudomonadales

A

both positive

33
Q

shape and oxidase properties of vibrionales

A

positive
curved rods

34
Q

what does vibrio spp. do to cause diarrhea

A

adheres to gut wall and secretes a toxin

35
Q

how many A and B subunits make up vibrio spp.

A

1 A
5B

36
Q

4 stages leading to cholera

A

-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
Q

what can be said about sulphate and sulfur with delta and epsilonproteobacteria

A

reducers

38
Q

out of the following epsilonproteobacteria what is pathogenic
campylobacter, sulfurospirillum, and helicobacter

A

campylobacter and helicobacter

39
Q

incubation period of campylobacter jejuni

A

1-11 days

40
Q

reservoir of campylobacter jejuni

A

GI tract of birds

BM211 microbiology (14 decks)

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