Mycobacterium Flashcards

1
Q

it is a strictly aerobic non spore forming curved or straight gram
positive rods

A

mycobacterium

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2
Q

deleted content of the cell of mycobacterium is how many percent of
dry weight

A

60%

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3
Q

the lipid content of mycobacterium is responsible for the resistance to

A

acids, disinfectants, antibodies,
and dessication

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4
Q

the lipid content of the cell wall of mycobacterium is responsible for
fast or slow growth

A

slow

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5
Q

is mycobacterium hydrophobic or hydrophic

A

Hydrophobic

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6
Q

the lipid content of mycobacterium contains what acid and it includes
6,6 dimycolate

A

mycolic acid

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7
Q

what is another term for 6,6 dimycolate

A

cord factor

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8
Q

what classification is based on the growth rate and pigment production
of mycobacterium

A

Runyon classification

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9
Q

are strains that grow slowly and produce a yellow pigment when
exposed to light

A

photochromogenic
strains

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10
Q

are strains that produce skin ulcers and pulmonary diseases in humans

A

photochromogenic
strains

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11
Q

they grow slowly and form a orange to yellow pigment whether grow
and light or dark

A

scotochromogenic
strains

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12
Q

strains that are usually considered saprophyte

A

scottochromogenic
strains

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13
Q

is a strain that grows slowly and do not produce pigment

A

non-chromogenic strains

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14
Q

is a strain that matures and less than one week at 36 to 37 degrees
celsius

A

rapid growers

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15
Q

what specific species of mycobacterium affects cattle, pig, cat, horse,
primates, dogs, and sheeps

A

mycobacterium bovis

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16
Q

it affects humans, primates, dogs, pigs, and cattle

A

mycobacterium tuberculosis

17
Q

it causes tuberculosis and pigs, cats, and horses

18
Q

it causes johne’s disease

A

mycobacterium paratuberculosis

19
Q

it is a media that is incorporated with egg yolk

A

Dorset’s and Stonebrink’s

20
Q

inhibitory substance of mycobacterium

21
Q

mycobacterium is light yellow that progresses into what color when
exposed to light

A

deep yellow to brick red

22
Q

the cell wall of mycobacterium is made out of

A

mycosides
waxes d
cord factor

23
Q

the composition of cord factor

A

trehalose 6,6-dimycolate

24
Q

Waxy lipid, makes cell permeable to most stains

A

mycolic acid

25
Q

the natural host of mycobacterium

26
Q

type of staining that is used to diagnose mycobacterium

A

Ziehl-Neelsen stain

27
Q

what areas is the most sensitive to tuberculin test

A

caudal fold
lip of vulva
side of neck

28
Q

mycobacterium species under runyons group 3

A

mycobacterium avium

29
Q

mycobacterium avium becomes what color when exposed
to light

A

yellowish to pinkish