Pepsinogen is activated by ?
Ans. is c i.e.,H+ Pepsin is secreted by chief cells of stomach in an inactive (zymogen) form called pepsinogen. Acid (IF) in lumen of stomach conves pepsinogen to active pepsin. Pepsin once formed also attacks pepsinogen producing more pepsin molecules by autocatalysis.
Enterokinase
Enteropeptidase
H+
Trypsin