ATI RN
Digestive System Multiple Choice Questions Questions
Question 1 of 5
Match: Chyme
Correct Answer: A
Rationale: Chyme is the semi-fluid mass of partly digested food expelled by the stomach into the duodenum.
Question 2 of 5
What is the role of mucus secreted by the stomach?
Correct Answer: A
Rationale: Mucus or Gastric mucus is a gel barrier secreted by epithelial cells & glandular cells in the stomach wall. It protects the inner lining of the stomach from HCl.
Question 3 of 5
What is an example of assimilation?
Correct Answer: C
Rationale: Assimilation involves using absorbed nutrients to synthesize cellular components; building proteins from amino acids is a prime example.
Question 4 of 5
The products of digested food are present in the ileum. Which substances enter a blood capillary and a lacteal in a villus?
Correct Answer: A
Rationale: Amino acids and glucose enter the blood capillaries, while fatty acids and glycerol are absorbed into the lacteals.
Question 5 of 5
The diagram shows a section through a villus. Y X What is a function of structure X and of structure Y?
Correct Answer: A
Rationale: Structure X (epithelial cells) absorbs amino acids, while structure Y (goblet cells) secretes mucus.