Lipid absorption Flashcards
List 3 isoprenoids
bile acids, bile salts and cholesterol
what cells release leptin
adipocytes
where are leptin receptors found
the hypothalamus
what does leptin do
signifies a satiated state, increase fat breakdown
what opposes leptin’s effects
grhelin
what are lingual lipase and gastric lipase optimized to digest
medium length lipids
what are bile salts derived from
cholesterol
what do bile salts do
emulsify fats, break up fat droplets
how do free FAs and MAG enter intestinal cells
passively
where do FAs and MAG from the intestinal lumen go once they enter the cell
they migrate to between the lipid bilayer of the ER
what digests TAGs in the small intestines
pancreatic lipase
what does pancreatic lipase break its product into
two free FAs and a 2-MAG
What all occurs in the lipid bilayer of the intestinal cell
FAs and MAG are activated by attachment to CoA and reformed into TAGs via TAG synthase
in the ER lumen, what is put into fat transportation bubbles (also, what are they called)
Chylomicrons contain FAs, CEs, and ApoB48
What is added to immature chylomicrons maturing them, and where does this occur
ApoCII and ApoE are added in the golgi
