ATI LPN
NCLEX Questions Gastrointestinal System Questions
Question 1 of 5
Where does the digestion of starch begin?
Correct Answer: C
Rationale: Starch digestion begins in the mouth with salivary amylase, making C correct.
Question 2 of 5
The pH of various areas within the digestive tract was taken and plotted on a graph as shown above. The reading labelled X was most likely obtained from the
Correct Answer: B
Rationale: A low pH reading (X) matches the acidic stomach environment, making B correct.
Question 3 of 5
Which of the following structures does food enter after it leaves the esophagus?
Correct Answer: C
Rationale: Food enters the stomach after the esophagus, making C correct.
Question 4 of 5
All of the following are organs of the digestive system except
Correct Answer: D
Rationale: The heart is part of the circulatory system, not the digestive system, unlike the stomach, mouth, and intestines, making D the correct answer.
Question 5 of 5
If no carbohydrate ingestion occurs in the body during a 24-hour period, liver activity provides for the body's needs by
Correct Answer: C
Rationale: The liver converts stored glycogen into glucose via glycogenolysis to maintain blood sugar levels, making C the correct answer.