Bacterial culture in laboratory. Introduction : bacterial growth.
Bacterial Anatomy
45
Bacteria vs. Eucaryotes www.freelivedoctor.com
description
bacterial anatomy
Transcript of Bacterial Anatomy
Bac
teria
vs.
Euc
aryo
tes
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Div
ersi
ty o
f Bac
teria
l S
hape
s
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Div
ersi
ty o
f Bac
teria
l S
hape
s
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Coc
coba
cillu
s
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Div
ersi
ty o
f Bac
teria
l S
hape
s
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Div
ersi
ty o
f Bac
teria
l Sha
pes
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Bac
illus
(pl
. B
acill
i)
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Div
ersi
ty o
f Bac
teria
l S
hape
s
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Spi
rillu
m
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Div
ersi
ty o
f Bac
teria
l S
hape
s
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Bac
teria
l Cel
lula
r A
rran
gem
ents
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End
ospo
res
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Bac
teria
l An
ato
my
(Ce
ll E
nve
lop
es)
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End
osym
bios
is
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Ba
cter
ial A
nato
my
(Pla
sma
Mem
bran
e)
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Plasma Membrane
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Mov
emen
t Acr
oss
Mem
bran
eswater
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Osmosis & Tonicity
Cell Walls Plasmolysis
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Protoplast & Spheroplast
A Protoplast is a Gram-Positive bacterium without its cell wall
A Spheroplast is a Gram-Negative bacterium lacking most of its cell wall
Hypotonic mediumIsotonic or Hypertonic medium
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Bac
teria
l Ana
tom
y (F
lage
lla)
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Fla
gellu
m (
p. F
lage
lla)
)
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Tax
is
Negative Chemotaxis is away from specific substances
Positive Chemotaxis is towards specific substances
Negative Phototaxis is away from light
Positive Phototaxis is towards lightwww.freelivedoctor.com
Axi
al F
ilam
ent (
End
oFla
gella
)
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Bac
teria
l Ana
tom
y (P
ili)
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Pilu
s (p
l. pi
li) -
- F
imbr
ia
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Cel
l-Sur
face
Fib
rils
Electron micrograph of an ultra-thin section of a chain of group A streptococci. The cell surface fibrils, consisting primarily of M protein, are clearly evident. The bacterial cell wall, to which the fibrils are attached, is also clearly seen as the light staining region between the fibrils and the dark staining cell interior. Incipient cell division is also indicated by the nascent septum formation (seen as an indentation of the cell wall) near the cell equator. The streptococcal cell diameter is equal to approximately one micron.
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Bac
teria
l Ana
tom
y (G
lyco
caly
x)
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Bac
teria
l Ana
tom
y (O
verv
iew
)
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