4. Proses pencernaan dari ketiga jenis makananRegion and homonal controls Carbohydrates Lipids Proteins

Oral cavity

Esophagus

Stomatch • Stimulus : anticipation or arrival of food• Hormon : gastrin• Source : G cells of stomatch • Proenzyme released : pepsinogen by chief

cells, activated to pepsin by HCL

Small intestine• Stimulus : arrival of chyme in duodenum• Hormone : CCK• Proenzyme released : chymotrypsinogen,

procarboxypeptidase trypsinogen, enterokinase

• Enzyme released : pancreatic, amilase, pancreatic lipase, nuclease, enterokinase

Intestinal mucosa Lactase, maltase, sucrase Diffusion

Salivary amilase

Dissacharides Trisaccaridhes

Dissacharides Trisaccaridhes

Pancreatic a-amylase

Facilitated diffusionAnd contra-transport

monosaccharides

Facilitated diffusion

monosaccharides(capilary)

Monoglycerides, fatty acidsIn micceles

Linguinallipase

Bile salt& pancreatic lipase

Monoglycerides,Fatty acids

triglycerides

chylomicrone

exocytosis

chylomicrone

polypeptides

pepsin

Short peptides,Amino acids

Trypsin,Chymotrypsin,Elastase carboxy

dipeptidase

Facilitated diffusionAnd contra-transport

Amino acids

Facilitated diffusionAnd contra-transport

Amino acyds(capilary)