Functions
Break down: One of the functions of the idgestive system is to break down the food we eat into smaller parts of the body. These are then used to nourish cells and provide energy.
Secretion: It secretes water, acids, enzymes, buggers, and ions
Elimination: The digestive system also creates waste which is eliminated.
Secretion: It secretes water, acids, enzymes, buggers, and ions
Elimination: The digestive system also creates waste which is eliminated.
OrgansMouth Esophagus Stomach Small intestine (duodenum, jéjunum, and finally ileum) Large intestine |
FunctionFood is partially broken down by the process of chewing and by the chemical action of salivary enzymes Uses wave-like muscle movements called peristalisis to force food from throat into the stomach Stores the food Mixes the food, liquid, and digestive juice Empty its contents slowly into the small intestine Bile, pancreatic enzymes, and other digestive enzymes produced by the inner wall breakdown the food Water and electrolytes are removed from the food. |
Enzymes secreted and what they break downsaliva: Breaks starch down to maltose
None Gastric Juice which is made up of pepsin: breaks down proteins and gastric lipase: breaks down certain lipids Peptidases: Proteins sucrase: Sucrose maltase: maltose lactase: Lactose Intestinal lipase: lipids Amylase: starch None |