the digestive system Flashcards
what is the function of villi
finger like projections on the surface of the small intestine.
it provides a large surface area for the absorbtion of molecules into the blood
what are microvilli?
membrane folds of an epithelial cell
they increase the surface area for the absorption of molecules into the cells
state the sections of the intestines in order starting with the stomach
stomach, duodenum, jejunum, ileum, large intestine
what blood vessel does glucose pass into?
capillaries
what does amino acids pass into?
capillaries
what passes into the lacteal?
fatty acids and glycerol
where do minerals, vitamins and water pass into?
capillaries
what proteins are absorbed into the small intestine?
peptides and amino acids
what fats are absorbed into the small intestine?
fatty acids and glycerol
what carbohydrates are absorbed into the small intestine?
glucose
what is the function of the large intestine?
remove water from the undigested matter and form solid waste that can be excreted.
what is a polypeptide?
a long chain of amino acids
