ATI LPN
Questions About Gastrointestinal System Questions
Question 1 of 5
Which of the following structures secrete hydrochloric acid?
Correct Answer: B
Rationale: Gastric glands in the stomach secrete HCl, making B correct.
Question 2 of 5
Which enzyme is most effective at pH 2.5?
Correct Answer: B
Rationale: Pepsin functions optimally at pH 2-3 in the stomach, making B correct.
Question 3 of 5
Which organ produces enzymes which aid in the digestion of fats?
Correct Answer: C
Rationale: The pancreas produces lipase to digest fats, making C correct.
Question 4 of 5
The pancreas is an organ connected to the digestive tract of humans by a duct (tube) through which digestive enzymes flow. Why are these enzymes important to the digestive system?
Correct Answer: C
Rationale: Pancreatic enzymes break down carbohydrates, proteins, and fats into absorbable molecules, making C the correct answer.
Question 5 of 5
Which components of the human diet contain the greatest amounts of sugars and starches?
Correct Answer: B
Rationale: Fruits and vegetables are rich in sugars and starches, making B the correct answer.