Question

Short chains of two amino acids (dipeptides) or three amino acids (tripeptides) are also transported actively. however, after they enter the absorptive epithelial cells, they are broken down into their amino acids before leaving the cell and entering the capillary blood via what?

Answer 1

diffusion

transports an amino acid varies. Most carriers are linked to the active transport of sodium. Short chains of two amino acids  dipeptides  or three amino acids  tripeptides  are also transported actively. However, after they enter the absorptive epithelial cells, they are broken down into their amino acids before leaving the cell and entering the capillary blood via diffusion.