ATI RN
Digestive System Mcq Questions Questions
Question 1 of 5
The absorption of fructose by intestinal mucosa is
Correct Answer: C
Rationale: Fructose is absorbed via facilitated transport through GLUT5 transporters in the intestinal mucosa.
Question 2 of 5
Micelle formation is necessary for the intestinal absorption of
Correct Answer: C
Rationale: Micelles, formed by bile salts, facilitate the absorption of fat-soluble vitamins like vitamin D in the small intestine.
Question 3 of 5
A 40-year-old patient presents with frequent episodes of heartburn, regurgitation, and a sour taste in the mouth after meals. Symptoms are worse when lying down or bending over. Which of the following conditions is the most likely cause of these symptoms?
Correct Answer: B
Rationale: Hiatal hernia allows acid reflux into the esophagus, worsened by lying down or bending, causing heartburn and regurgitation.
Question 4 of 5
If the sphincter at the top of the stomach is not working properly what do we suffer from?
Correct Answer: A
Rationale: A malfunctioning lower esophageal sphincter allows acid reflux, causing heartburn. Constipation, heart attacks, and diarrhea are unrelated to this sphincter.
Question 5 of 5
The intestine has a large surface area. Why?
Correct Answer: C
Rationale: A large surface area, due to villi and microvilli, enhances nutrient absorption efficiency.