ATI LPN
Upper Gastrointestinal System NCLEX Questions Questions
Question 1 of 5
Which of the following enzymes digest proteins?
Correct Answer: C
Rationale: Pepsin digests proteins in the stomach, making C correct.
Question 2 of 5
Peristalsis may refer to the
Correct Answer: D
Rationale: Peristalsis is the rhythmic contraction moving food through the esophagus, making D correct.
Question 3 of 5
Where does the chemical digestion of protein occur?
Correct Answer: B
Rationale: Protein digestion occurs in the stomach (pepsin) and small intestine (trypsin), making B correct.
Question 4 of 5
Bile is a secretion which aids in the digestion of
Correct Answer: A
Rationale: Bile emulsifies lipids (fats), aiding their digestion by lipases, making A the correct answer.
Question 5 of 5
Which nutrients can be absorbed without first being digested in the human gastrointestinal tract?
Correct Answer: D
Rationale: Vitamins and minerals are absorbed directly without digestion, unlike carbohydrates and proteins, making D the correct answer.