Digestion of nucleic acid :
(1) In buccal cavity = No digestion
(2) In stomach = No digestion
(3) In small intestine :-
(c) Succus entericus -
Digestion of protein :-
(1) In buccal cavity = No digestion
(2) In stomach = Denaturation of proteins
HCl ⟶ 3° ⟶ 2° ⟶ 1°
(3) In small intestine :-
(a) Bile juice = No digestion
(b) pancreatic juice :-
(c) Intestinal Juice :-
(i) By aminopeptidase
Peptides ⟶ amino acid + Dipeptide
(ii) By dipeptidase
Dipeptide ⟶ amino acid + amino acid
Digestion of carbohydrates :(1) In buccal cavity = enzyme salivary amylase
(2)In stomach= No digestion
(3) In small intestine :-
(a) Bile juice = No digestion
(b) pancreatic juice = pancreatic amylase (amylopsin)
(c) Intestinal Juice
Digestion of lipids :
(1) buccal cavity = no digestion
(2) stomach = gastric lipase
(3) small intestine :-
(a) bile juice - emulsification of fats
(b) pancreatic juice = pancreatic lipase
(c) intestinal juice = intestinal lipase
Common action of lipase is -
Lipid(in the presence of lipase) ⟶ 3 fatty acids + glycerol