Digestion and absorption of proteins

Question 1

What must proteins be broken down into before they are broken down

Answer 1

Amino acids

Question 2

How are proteins digested in the stomach

Answer 2

Pepsinogen reacts with HCL to become pepsin, and cleaves link between amino acids to break them down

Question 3

What produces pepsinogen

Answer 3

Chief cells

Question 4

How are proteins digested in the small intestion

Answer 4

By proteolytic enzymes

Question 5

Give 2 examples of proteolytic enzymes

Answer 5

Trypsin and chymotrypsin

Question 6

How does the brush border of the small intestine aid in protein digestion

Answer 6

Proteins at brush border break down into amino acids

Question 7

What fluid substance aids with digestion in the small intestine

Answer 7

chyme

Question 8

What are the 2 peptides that amino acids can be absorbed as

Answer 8

di-peptides and tri-peptides

Question 9

Describe the absorption of proteins

Answer 9

Co-transported from intestinal lumen to the surrounding cells with h ions. Peptides and h ions are then pumped into the absorptive cell via hydrogen ion pump. Muscle contractions move digested peptides to their absorptive sites

Question 10

What do peptides require in order to be transported to the bloodstream

Answer 10

ATP