GI: digestion and absorption Flashcards
what do we input vs absorb
how are carbs digested in the mouth
how are carbs digested in the stomach
how are carbs digested in the small intestine
explain how you go from polymers to monosachharides
where are brush border enzymes? what do they do?
how do monosachs get absorbed
which monosach uses glut 5? glut 2? SGLT?
how is pepsinogen used to break down proteins
what releases pepsinogen
what is the role of pepsin? where does it cleave?
what do endopeptidase enzymes do
what do exopep enzymes do
two types of exopeps
explain how you go from zymogens to activated enzymes
what are trypsin and trypsinogen
role of carboxypeptidase
what is autodigestion and how do we avoid it
how are dipeptides digested
how are amino acids digested
how are small peptides digested
where does fat digestion start
what enzymes break down fat in the mouth
what happens to fat in the stomach
is fat mostly digested in mouth and stomach
what does it mean for bile salts to emulsify fat droplets
where does bile salt emuls. of fat happen
where do bile salts and lecithin come from
why is bile salt emulsification necessary
how do bile salts help form micelles?
how does fat get absorbed into the small intestine
what is reesterification
how does cholesterol get into the small int
what are chylomicrons
what happens to chylomicrons in the blood vessels
where do chilomicron remnants go
how are fat soluble vitamins absorbed
how are water soluble vitamins absorbed
how is vitamin b12 absorbed
how does water move into intestine (2 ways)
how is calcium absorbed
what is calbindin
how is iron absorbed
what is ferroportin
how is nacl absorbed into the small intestine and colon
what role does the oral cavity and esoph play in MSDA
what role does the stomach play in MSDA
what role does the small int play in MSDA
what role does the large int play in MSDA
