ATI RN
Digestive System Practice Questions Questions
Question 1 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 2 of 5
The enzyme_________________________________ is made by the pancreas and breaks longer amino acid chains into short amino acid chains.
Correct Answer: D
Rationale: Trypsin, secreted by the pancreas, breaks down larger polypeptides into shorter peptide chains during protein digestion.
Question 3 of 5
Match: Carbohydrate
Correct Answer: A
Rationale: Carbohydrates serve as the body's primary energy source and consist of carbon, hydrogen, and oxygen atoms.
Question 4 of 5
What is the role of mucus secreted by the stomach?
Correct Answer: A
Rationale: Mucus or Gastric mucus is a gel barrier secreted by epithelial cells & glandular cells in the stomach wall. It protects the inner lining of the stomach from HCl.
Question 5 of 5
A digestive enzyme, salivary amylase, in the saliva begin digestion of-
Correct Answer: A
Rationale: Salivary amylase (ptyalin) in saliva begins the digestion of carbohydrates by breaking down starches into simpler sugars like maltose.