ATI RN
Questions About Digestive System Questions
Question 1 of 5
Enzyme pepsin acts upon food at a pH of about-
Correct Answer: A
Rationale: Pepsin works at a pH of about 1.8 to break down proteins into peptides.
Question 2 of 5
Lactose composed of :-
Correct Answer: A
Rationale: Lactose is a disaccharide made of glucose and galactose.
Question 3 of 5
The enzymes present in pancreatic juice are
Correct Answer: B
Rationale: Pancreatic juice contains amylase, lipase, trypsinogen, and procarboxypeptidase for digesting carbohydrates, fats, and proteins.
Question 4 of 5
The disease caused due to deficiency of nicotinic acid is
Correct Answer: D
Rationale: Pellagra is caused by a deficiency of niacin (nicotinic acid), leading to symptoms like dermatitis, diarrhea, and dementia.
Question 5 of 5
Which of the following combinations will lead to the highest level of acid secretion through potentiation? (Potentiation refers to a post-receptor interaction where the response obtained is greater than the sum of each individual agent acting alone.)
Correct Answer: A
Rationale: Vagal input, histamine, and gastrin all stimulate parietal cells synergistically (potentiation), maximizing acid secretion, while secretin inhibits it.