ATI LPN
Gastrointestinal System NCLEX Questions Questions
Question 1 of 5
Which of the following results in an increase in the surface area of food?
Correct Answer: B
Rationale: Peristalsis churns food, increasing its surface area, making B correct.
Question 2 of 5
In humans, chemical digestion is accomplished by enzyme action that begins in the mouth and ends in the
Correct Answer: C
Rationale: Chemical digestion starts with salivary amylase in the mouth and completes in the small intestine with pancreatic and intestinal enzymes, making C the correct answer.
Question 3 of 5
After food enters the small intestine, lipases, proteases, and amylases are secreted into the small intestine by the
Correct Answer: D
Rationale: The pancreas secretes lipases, proteases, and amylases into the small intestine for digestion, making D the correct answer.
Question 4 of 5
Vitamin B1 assists an organic catalyst in cell respiration. This vitamin functions as
Correct Answer: B
Rationale: Vitamin B1 (thiamine) acts as a coenzyme in cellular respiration, making B the correct answer.
Question 5 of 5
Which is a function of the liver in human adults?
Correct Answer: C
Rationale: The liver stores glycogen, making C the correct answer.