BIOL 404-Exam 4-GI 5

What are the three enzyme types that break peptides into AAs?

Carboxypeptidases, Aminopeptidases and Cytoplasmic peptidases have what activities?

What are the three locations for protein digestion

What does Elastase do?

After proteins are broken down to oligopeptides, what happens to them?

What are the two types of enzymes that breakdown oligopeptides?

What do endopeptidases do?

What do Ectopeptidases do?

What types of protein products can be absorbed?

Transport of protein products into the cell is likely linked to what type of ion transporter?

After absorption, what happens to di and tripeptides?

Are all di and tripeptides broken down in the cytoplasm of the enterocytes?

Where does absorption of protein products occur?

Can intact protein be absorbed into the small intestine?

What type transport is needed to move free AAs into the endocytes?

What type of protein product requires secondary active transport coupled with protein?

By what mechanism are di/tripeptides carried into the endocytes?

Secondary active transport coupled with H ions carries what protein product into the enterocyte?

How are Di and Tri-peptides carried out of the endocytes?

Are dipeptides, tripeptides or AAs absorbed more rapidly?

What provides the radiant for secondary active transport of protein products?

How do AAs exit the enterocyte?

Trypsin is a protein digesting enzyme that is secreted where?