Digestive System Flashcards
Ingestion/eating
Food is taken in by the body
Digestion
Food is broken down
Absorption
Digested food passes into the bloodstream
Assimilation
Using the food in the cells of the body
Elimination
Getting rid of undigested food
Enzymes
Enzymes are chemicals that speed up reactions without being used up in the reaction, enzymes act on substrate and breaks it down into a product.
Example: substrate
=starch, enzyme =
Amylase (saliva),
Product = maltose(sugar)
Chemical digestion
Most chemical digestion happens in the small intestine.
Bile
Bile made in liver to break down fats
Pancreas
Makes digestive juices which contain enzymes
Physical digestion
Happens in the mouth with the teeth and stomach with the churning.
Mouth
Physical and chemical digestion
Oesophagus
Brings food from mouth to stomach
Liver
Makes bile
Stomach
Physical and chemical digestion
Pancreas
Makes digestive juices