Table
Stages in Digestion
| Part of the Alimentary Canal | Gland and its secretion | Enzyme secreted | Substrate | Product of Digestion |
|---|---|---|---|---|
| Mouth | Salivary gland : Saliva | Salivary amylase (Ptyalin) | Starch | Maltose |
| Oesophagus | None | None | None | None |
| Stomach | Glands lining the stomatch : Gastric juice and hydrochloric acid. | Pepsin in adults Renin is children | Proteins, Coagulation of milk proteins (Caseinogen) | Proteases and Peptones Casein |
| Duodenum | Liver : Bile juice | None | Fats |
|
| Pancrease : Pancreatic Juice |
|
|
| |
| Ileum | Glands lining the ileum : Intenstinal juice. | Erepsin (Peptidase) Maltase Sucrase (invertase) Lactase | Proteins and peptides Maltose Sucrose Lactose | Amino acids Glucose and Fructose Glucose and galactose |
| Colon | None | None | None | Absorbs water and mineral salts forming feaces |
| Rectum | None | None | None | Temporarily stores undigested food before egestion |
