ATI RN
Digestive System Practice Questions Questions
Question 1 of 5
Which of the following hormones is responsible for stimulating gallbladder contraction and the release of bile into the small intestine during the intestinal phase of digestion?
Correct Answer: A
Rationale: CCK, released in response to fats in the duodenum, stimulates gallbladder contraction and bile release for fat digestion.
Question 2 of 5
Ficks law, describes the effects of various factors on the rate of diffusion. Which statement is true?
Correct Answer: B
Rationale: Fick's law states that diffusion rate increases with a larger surface area, steeper concentration gradient, and thinner membrane.
Question 3 of 5
Having reduced amounts of Anti Diuretic hormone does what:
Correct Answer: C
Rationale: Reduced ADH increases urine output, making it dilute (insipid) due to less water reabsorption.
Question 4 of 5
The cells of the proximal convoluted tubule are specialised to absorb compounds back into the circulatory system. In what way?
Correct Answer: C
Rationale: Microvilli increase the surface area for reabsorption in the proximal convoluted tubule.
Question 5 of 5
The splitting of fat globules into glycerol and fatty acids is handled by the enzyme
Correct Answer: C
Rationale: Lipase is the enzyme that breaks down fats into glycerol and fatty acids during digestion.