Question

how digestion of protein, carbohydrate, fat occur in alimentary canal​

Answer 1

our alimentary canal starts from our mouth to the anus.All the digestion process occurs in this alimentary canal.It has oesophagus,stomach,kidney,large and small intestines.

TO YOUR QUESTION

Our stomach has many kinds of bio catalysts called enzymes which helps in proper digestion of important vitamins like protein, carbohydrate, fat.

Answer 2

The mechanical and digestive processes have one goal: to convert food into molecules small enough to be absorbed by the epithelial cells of the intestinal villi.