Q. What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?
A) Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin
B) Gastric juice will be deficient in chymosin
C) Gastric juice will be deficient in pepsinogen
D) In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin
Explanation
[Solution from source] Parietal (oxyntic) cells secrete HCl and intrinsic factor, and HCl is what converts pepsinogen into active pepsin. Pepsinogen itself is made by chief (peptic) cells, so blocking parietal cells would not reduce pepsinogen output. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.