(a) Two functions of bile juice are:
(i) Helps in emulsification of fats.
(ii) Provides alkaline medium.
(b) Difference between functions of enzymes pepsin and trypsin
Pepsin:- (i) Acts in acidic medium in stomach
(ii) Acts on proteins and breaks down to polypeptides and dipeptides.
Trypsin:- (i) Acts in alkaline medium in small intestine.
(ii) Acts on partially digested proteins and breaks down to amino acids