ATI LPN
NCLEX Questions on Gastrointestinal System Questions
Question 1 of 5
What occurs during the digestion of proteins?
Correct Answer: A
Rationale: Proteins are broken down into amino acids by enzymes like pepsin and trypsin, not hormones or sugars, making A the correct answer.
Question 2 of 5
The digestion of food and subsequent absorption into the bloodstream is important because
Correct Answer: C
Rationale: Digested food provides nutrients for metabolic processes, making C the correct answer.
Question 3 of 5
A disorder of the digestive system that can cause severe dehydration is known as
Correct Answer: D
Rationale: Diarrhea causes water loss, leading to dehydration, making D the correct answer.
Question 4 of 5
The excretory system is responsible for moving toxic wastes, dissolved molecules, and excess heat. You would conclude that the excretory system contributes to
Correct Answer: B
Rationale: Excretion maintains homeostasis (dynamic equilibrium), making B the correct answer.
Question 5 of 5
The presence of large numbers of mitochondria in the tubule cells of nephrons suggests that the transport of materials into and out of tubule cells requires
Correct Answer: C
Rationale: Mitochondria provide energy for active transport in tubules, making C the correct answer.