GI lecture 7 fat digestion and absoption Flashcards
tf glycerol side of TG is water insol and hydrophobic
F FA
sterol backbone cholesterol TG Bil salt
bile salt
3 OH and conjugate group with sterol backbone
BILE SALT
CMC
point at which bile salts saturate the aq surface of water bile salts bind back to back and head to tail(form micelles)
tf interfacial tension dec with monomer accumalation on surface of water
T
tf macromol assembly of micelles are hydrophillic
T
tf if u are at critical micelle concentration TG will dissolve in micells
F only FA and MG
TF phospholipids will dissolve in micelle bile salts wont
F both do
Micelles water soluble water insol package TG package MG but not FA
water soluble
TF micelles stored in the gall bladder arent mixed
F have lecithin and cholesterol
TF only bile salts solubilize cholesterol and lowers tendency to form gall stones
F Lecithin (phospholipid does as well)
which of the following doesnt leads to gall stone stasis minimal absorption of water and electrolytes higher among mexican americans and native americans excess chol. relative to bile salts
minimal absorption of water and electrolytes
TF galls stones more prevalent among men
F among female
tf in 1 peristaltic contraction there is large percent of fat entering Small int
F small
tf fat is digested faster than carbs in stomach
F fat is digested slow
