Morf. Struk.amy Rev Ppt
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Transcript of Morf. Struk.amy Rev Ppt
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MORFOLOGI SEL MORFOLOGI SEL BAKTERIBAKTERI
Oleh :Oleh :Pratami AdityaningsariPratami AdityaningsariSubBag.MikrobiologiSubBag.Mikrobiologi
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Terdiri atas Terdiri atas 3 btk utama3 btk utama : :
1.1. kokus/bundarkokus/bundar
2.2. basil/batangbasil/batang
3.3. spiralspiral
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KokusKokus ::- - Monokokus/mikrokokusMonokokus/mikrokokus- Diplokokus- Diplokokus
pneumokokuspneumokokus ( (Streptococcus pneumoniaeStreptococcus pneumoniae)) gonokokus (gonokokus (NNeisseriae eisseriae gonnorhoeaegonnorhoeae))
- Tetraden (- Tetraden (Gaffkya tetragenaGaffkya tetragena))- Sarcina (- Sarcina (Sarcina luteaSarcina lutea))- Streptokokus (- Streptokokus (Streptococcus pyogenesStreptococcus pyogenes))
- Stafilokokus (- Stafilokokus (Staphylococcus aureusStaphylococcus aureus))
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Basil Basil : :- Kokobasil (- Kokobasil (Escherichia coliEscherichia coli))- Fusiformis (- Fusiformis (Fusobacterium fusiformisFusobacterium fusiformis))- Streptobasil- Streptobasil
SpiralSpiral : :- Vibrio (- Vibrio (Vibrio choleraeVibrio cholerae))- Spirilum- Spirilum- Spirokhaeta : Borrelia- Spirokhaeta : Borrelia
TreponemaTreponema LeptospiraLeptospira
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Morfologi sel bakteri
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Kokus, bergerombol spt anggur (Stafilokokus), Gram +
Diplokokus, Gram +
Kokus spt rantai (Streptokokus), Gram +
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Batang, Gram -
Batang, Gram +
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spirochaeta
Batang bengkok, Gram -
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STRUKTUR SEL KUMANSTRUKTUR SEL KUMAN
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Struktur sel bakteri berdasarkan fungsinya :Struktur sel bakteri berdasarkan fungsinya :struktur utamastruktur utama
dinding seldinding selintiintisitoplasmasitoplasmapili, dllpili, dll
struktur tambahanstruktur tambahankapsul/simpai/selubungkapsul/simpai/selubungflagel/axial filamenflagel/axial filamensporaspora
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Dinding selDinding sel laplapisan isan antantara ara membran sitopmembran sitoplasma lasma dgn kapsuldgn kapsul
kekuatan dinding sel diberikan ol lap yg tdakekuatan dinding sel diberikan ol lap yg tda murein, mukopeptida atau murein, mukopeptida atau peptidoglikanpeptidoglikan
** tebal/tipis lap peptidoglikan ant Gram + & Gram - berbeda
sifat sifat Gram Gram kmnkmn ditent ditentukan ukan ololeh eh komposisikomposisidinding seldinding sel Gram negatif / positif Gram negatif / positif
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Perbedaan lap peptidoglikan ant Gram +Perbedaan lap peptidoglikan ant Gram + dgn Gram -dgn Gram -
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Fungsi dinding sel :Fungsi dinding sel :memberikan perlindungan osmotikmemberikan perlindungan osmotikpembelahan selpembelahan selinisiator utk biosintesisnya sendiriinisiator utk biosintesisnya sendiri
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Perbedaan dinding sel bakteri antara Gram + dgn Gram -
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Membran sitoplasmaMembran sitoplasma - tda fosfolipid- tda fosfolipid && proteinprotein yg molekulnya m’btk yg molekulnya m’btk
2 permukaan yg sejajar 2 permukaan yg sejajar lap. ganda lipid lap. ganda lipid
lap luar : kel fosfat polarlap luar : kel fosfat polarlap dalam : kel fosfat nonpolarlap dalam : kel fosfat nonpolar
- fungsi : penghalang permeabilitas yg - fungsi : penghalang permeabilitas yg m’batasi jenis dan jumlah molekulm’batasi jenis dan jumlah molekul yg keluar masuk sel yg keluar masuk sel
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- ditmp ttt ada lekukan ke dlm - ditmp ttt ada lekukan ke dlm mesosom mesosom
septal m. & lateral m.septal m. & lateral m.
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RuangRuang periplasmaperiplasmaruang antara membran dalam dan luarruang antara membran dalam dan luar
ruang periplasmaruang periplasmaberisi lap peptidoglikan & lar protein berisi lap peptidoglikan & lar protein
spt gel spt gel
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SitoplasmaSitoplasma- - Merupakan bagian yg berbentuk koloidMerupakan bagian yg berbentuk koloid - Tempat menyimpan - Tempat menyimpan cadcadangan angan makmakanananan dlm btkdlm btk granula tidak larutgranula tidak larut
Granula sitopGranula sitoplasma/granula volutin/granulalasma/granula volutin/granula
metakromatismetakromatis
gran.Much Weiss (gran.Much Weiss (M. tuberculosisM. tuberculosis))
gran.Babes Ernst (gran.Babes Ernst (C. diphtheriaeC. diphtheriae))- Di dalamnya juga terdapat - Di dalamnya juga terdapat Inti/nukleusInti/nukleus
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Pili/fimbriaPili/fimbria tda protein tda protein pillin pillin macamnya :macamnya :
sex pili (untuk konyugasi sel)(untuk konyugasi sel) pili biasa (alat menempelnya (alat menempelnya bakteri pada permukaan mukosa bakteri pada permukaan mukosa inang)inang)
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KapsulKapsul- merupakan lapisan di luar dinding sel bakteri- terdiri atas polipeptida & karbohidrat- merupakan salah satu faktor virulensi- bersifat antigenik
- tahan thd fagositosis- tahan thd fagositosis - secara makroskopis, bakteri yg memiliki- secara makroskopis, bakteri yg memiliki kapsul koloninya berbentuk mukoidkapsul koloninya berbentuk mukoid
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Kapsul bakteri secara mikoskopis dgn Pewarnaan Gins Burry (pewarnaan khusus)
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FlagelFlagel - merupakan alat gerak bakteri
-- tda protein tda protein flagelin flagelin - - sgt sgt rapuhrapuh tp tp dapat dapat tumbtumbuuh lg 3-6 mnt h lg 3-6 mnt kkemudianemudian - bersifat antigenik- bersifat antigenik
macamnya :macamnya : -- atrichatrich
- - monotrichmonotrich - lopotrich- lopotrich
- - ampitrichampitrich - peritrich- peritrich
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- flagel tertancap pd benda basal yg dpt- flagel tertancap pd benda basal yg dpt memutar flagel spt baling-balingmemutar flagel spt baling-baling
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SporaSpora dibentukdibentuk ol oleh eh bbeebbeerraappaa j jeenniis s bakteribakteri ttererbbenenttuuk dlm keadk dlm keadaan aan yg ekstrimyg ekstrim
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Macam-macam letak spora :Macam-macam letak spora :- Terminal- Terminal- Sub terminal- Sub terminal- Sentral - Sentral
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