Where does the chemical digestion of proteins begins?

Answer 1

Chemical digestion of proteins begin in the stomach.
In the stomach.
The digestion of proteins begin at the stomach.
The stomach. There are recesses in the wall of the stomach called pits. These pits produces pepsinogen and HCl as well are protective mucous. Pepsinogen is the zymogen (inactive form) of pepsin the enxyme which breaks down protein. It is cleaved form the zymogen form into the active form in very low pH situations, this is why HCl is secreted here.
Mouth
Chemical digestion of protein starts in the stomach.
It would begin in the stomach. It would occur by the action of an enzyme called pepsin.
In the stomach

Answer 2

stomach