lecture 14 Flashcards

1
Q

living microorganisms

A

-bacteria
-protista
-mycotae

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2
Q

non-living microorganisms

A

-viruses
-prion
-retroviruses

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3
Q

what are bacterial colonies

A

growing bacteria that multiplied and grew on a petri dish

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4
Q

what are the 2 ways to classify the appearance of a cell

A
  • type of cell wall
    -cell shape and arrangement
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5
Q

what are the two types of bacterial cell walls

A

-peptidoglycan
-lipopolysamlharide

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6
Q

4 steps of gram staining

A

-pour blue dye
-fix it with iodine
-wash out with alcohol
-pour red dye

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7
Q

what does the blue dye in the gram staining determine?

A

if absorbed it means the cell wall consists of peptidoglycan

if not absorbed then wall consists of lipopolysamlharide

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8
Q

what color is gram +

A

blue
purple

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9
Q

what color is gram -

A

pink
red

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10
Q

cell shape of cocci (coccus)

A

round

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11
Q

cell shape of bacilli

A

rod-shaped

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12
Q

cell shape of spirilli

A

twisted or helix shaped

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13
Q

arrangement of a diplo-

A

in pairs

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14
Q

arrangement of strepto-

A

in chains

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15
Q

arrangement of staphylo-

A

in clusters

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16
Q

3 types of respiration performed by bacterial cells

A
  1. aerobic respiration
  2. anaerobic respiration
  3. obligate anaerobic respiration
17
Q

what is an endospore

A

a hard shell formed around the bacterial DNA to preserve the bacteria

18
Q

where is good bacteria found in the human body

A

in the GI tract, normal flora

19
Q

what is normal flora

A

bacteria living in the colon which produces vitamin k

20
Q

3 major parts of the ear

A
  1. outer ear
  2. middle ear
  3. inner ear
21
Q

what does the outer ear include:

A

pinna (auricle)
external auditory canal
tympanic membrane (ear drum)

22
Q

what does the inner ear consist of

A

3 tiny bones, the malleus, incus, stapes

23
Q

what does the inner ear include

A

cochlea and semicircular canals with the vestibule

24
Q

what does the pinna or auricle collect

A

sound waves

25
what does the external auditory canal do
directs sound waves to the ear drum
26
what does the tympanic membrane do
begins to vibrate with frequency of sound wave
27
what is the semicircular canal and vestibule responsible for
balance and equilibrium
28
what is the cochlea responsible for.
sound detection
29
what is cilia
(seaweed like)
30