digestive enzymes (supplement) Flashcards
where is amylase secreted
saliva and pancreas
where does amylase act
mouth and duodenum
where is protease secreted
stomach and pancreas
where does protease act
stomach and duodenum
where is lipase secreted and where does it act
secreted by pancreas, used in duodenum
what does amylase break starch molecules down into?
maltose- 2 glucose molecules linked together
what is the purpose of maltase?
breaks maltose molecules down into glucose
where is pepsin secreted from
stomach walls, in gastric juice
where is maltase secreted?
from cells lining the small intestine, sitting on the tissue called epithelium
name for protease produced in stomach
pepsin
optimum pH of pepsin
2
protease produced in pancreas and acts in duodenum + whats its optimum pH?
trypsin; just above 7
what is the 2nd function of bile?
emulsifies fats (physical digestion)
what are villi?
villi (singular villus) small projections that line the inner surface of the small intestine, increasing surface area
what are microvilli?
tiny folds on the surface of each villi; maltase acts here, as well as many important nutrients are absorbed
