Peptic or chief glands of the stomach secrete gastric digestive enzymes such as pepsinogen and prorenin.
HCl is secreted by oxyntic glands of the stomach and activates pepsinogen into pepsin as pepsinogen can not work on protein, so it needs to be activated into pepsin.
HCl activates prorenin into rennin.
These enzymes work on proteins.
Final Answer: The enzymes secreted by the stomach are pepsinogen and prorenin.