Asked by Chloe Rogahn on May 20, 2024
Verified
Pepsinogen, a digestive enzyme, is secreted by which cells of the stomach?
A) parietal cells
B) chief cells
C) mucus neck cells
D) none of the above
Pepsinogen
The inactive precursor of pepsin, a digestive enzyme that is secreted by the stomach wall and activates in gastric acid.
Chief Cells
Cells found in the stomach and parathyroid glands that are responsible for secreting pepsinogen and parathyroid hormone, respectively.
Parietal Cells
Cells within the lining of the stomach that produce and secrete hydrochloric acid and intrinsic factor, crucial for digestion and absorption of vitamin B12.
- Comprehend the functions of different stomach cells and their contributions to the digestion process through their secretions.
Verified Answer
JB
Jordan BalserMay 21, 2024
Final Answer :
B
Explanation :
Pepsinogen is secreted by chief cells of the stomach. Parietal cells secrete hydrochloric acid, while mucus neck cells secrete mucus to protect the stomach lining.
Learning Objectives
- Comprehend the functions of different stomach cells and their contributions to the digestion process through their secretions.