5.4 digestive system Flashcards
What are the organs in order?
Mouth
Esophagus
Stomach
Small intestine
Large intestine
What does the mouth do?
Breaks down food mechanically with saliva and teeth.
What does the esophagus do?
Transfers food from the mouth to the stomach.
What does the stomach do?
Breaks down the food chemically using stomach acid.
What does the small intestine do?
Nutrient absorption and further digesting food.
What does the large intestine do?
Moves food towards the exit.
Macromolecules
Amylase- Carbohydrates
Lipase- lipids
Protease- proteins
Storage molecules
glucose- glycogen
fats- triglycerides
Amino acids- proteins
mechanical vs chemical digestion
Mechanical digestion
mouth and esophagus
chemical digestion
everything else
Where does most of the nutrient absorption occur?
The small intestine