1 Polypeptides Pancreas Stomach Esophagus Pepsin enzyme: breaks protein’s polypeptide bonds f o o d 2 Small Intestine Large Intestine Liver Pancreas • Pancreas secretes: Pepsin, Trypsin, & Chymotrypsin into the small intestine. • Peptides still being broken down, enter the small intestine, where proteins finish digestion. 3 Pepsin, Trypsin, Chymo - trypsin Amino acids Small Intestine • Pepetide bonds are cleaved into smaller units. • Next, Carboxypeptidase (Brush border enzyme) spilts peptides into individual amino acids . 4 Liver Small Intestine Amino acids Amino acids • Amino acids are absorbed by the Jejunum (midesection of small intestine). • In the bloodstream, amino acids travel to the liver. • Liver regulates amino acids distribution to cells. 1 Polypeptides Pancreas Stomach Esophagus Pepsin enzyme: breaks protein’s polypeptide bonds f o o d 2 • Pancreas secretes: Pepsin, Trypsin, & Chymotrypsin into the small intestine. • Peptides still being broken down, enter the small intestine, where proteins finish digestion. Small Intestine Large Intestine Liver Pancreas 3 • Pepetide bonds are cleaved into smaller units. • Next, Carboxypeptidase (Brush border enzyme) spilts peptides into individual amino acids . Pepsin, Trypsin, Chymo - trypsin Amino acids Small Intestine 4 Liver • Amino acids are absorbed by the Jejunum (midesection of small intestine). • In the bloodstream, amino acids travel to the Liver. • Liver regulates amino acids distribution to cells. Small Intestine Amino acids Amino acids Protein digestion How food becomes amino acids

Proteins from food are not bioavailable until they've been returned to individual amino acids. Proteins in your diet resupply cells with the amino acids needed to build proteins. The importance of eating protein is to resupply your body’s amino acids.

The individual amino acids are absorbed into the bloodstream from the middle section of the small intestine. Then they travel to the liver where their dispersal is regulated.