biokimia sistem pencernaan
TRANSCRIPT
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Biokimia sistem pencernaan
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Hormon dan enzim pencernaan
• Hormongastrin, kolesistokinin, sekretin, peptida penghambat gaster
• Enzim
amilase,lipase,pepsin,tripsin,maltase,sukrase,fruktase
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Karbohidrat makanan
Kanji, glikogen
laktosa maltosa sukrosa
galaktosa glukosa fruktosaglukosa glukosa glukosa
laktase maltase sukraselumen
Amilase liurAmilase pankreas
Na+ Na+ Na+
Pembawa kotransportasi na+
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glukosagalaktosa fruktosa
kapiler
Sel epitel vilus
Penyerapan yang bergantung pada na+ dan energi
Difusi terfasilitasiMemerlukan energi
Na+
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Protein eksogen
Protein endogen
pepsinEnzim
proteolitik
Peptida kecil
Peptidase intrasel
Asam amino
Asam amino
Asam amino
kapiler
lumen
aminopeptidase
Sel epitel vilus
Na+
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Lemak dalam makanan Garam empedu
trigiserida
monogliserida
Asam lemak
Garam empedu
monogliserida
Asam lemak bebas
Emulsi lemak
lumenmisel
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trigiserida
kilomikron
lakteal
beragregasi
Sel epitel vilus
eksositosis
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Cl-CO2+H2O
H2CO3
H+ +HCO3-
NA+ + HCO3-
NA+CL-CO2H2O
Na+Cl-Co2h20
Lumen Sel parietal lambung
Cl-CO2H2oNa+
Hco3-
Hco3- + na+
Darah
Sel duktus pankreas
Sel epitel usus
H+ + cl-
Na+ + hco3-
Na+ + cl-DanH+ + hco3-
H2co3
Co2 + h2o