ATI LPN
Gastrointestinal System Quiz Questions Questions
Question 1 of 5
Emulsification of fat is the function of
Correct Answer: A
Rationale: Bile from the gallbladder emulsifies fats, breaking them into smaller droplets, making A correct; lipase digests fats, not emulsifies them.
Question 2 of 5
What enzyme functions optimally at a pH of 7?
Correct Answer: D
Rationale: Trypsin functions best at neutral to basic pH (around 7-8) in the small intestine, making D correct.
Question 3 of 5
What two structures produce chemicals that digest proteins?
Correct Answer: C
Rationale: Gastric glands (pepsin) and pancreas (trypsin) digest proteins, making C correct.
Question 4 of 5
Which of the following is not a component of pancreatic juice?
Correct Answer: C
Rationale: Pancreatic juice contains enzymes and bicarbonate, not HCl (stomach), making C correct.
Question 5 of 5
Which of the following results from the increased secretions by the gastric glands?
Correct Answer: B
Rationale: Gastric secretions (HCl, pepsin) increase protein hydrolysis in the stomach, making B correct.