DIGESTION AND ABSORPTION OF LIPIDS Flashcards
enzyme in stomach
churning action - chyme
gastric lipase
very small compared to the original TAG globules, which contain
thousands of TAG molecules
Fatty acid micelles
free fatty acids and monoacylglycerols produced from hydrolysis are combined into tiny
spherical droplets
micelles
enzymes in small intestines
bile
pancreatic lipases
enzymes in intestinal cells
micelles / chylomicrons
contains free fatty acid and monoacylglycerol components and are small enough to be readily absorbed through the membranes of intestinal cells
Micelles
a thick semi-liquid material made up of partially digested food and gastric secretions (hydrochloric acid and several enzymes)
Chyme
a lipoprotein that transports TAGs from intestinal cells, via the lymphatic system,
to the bloodstream
chylomicron
Lipid digestion also begins in the?
stomach
newly formed TAGs are then combined with
membrane lipids and water-soluble proteins to produce a type of lipoprotein
chylomicron
arrival of chyme from the stomach triggers in the small intestine, through the action of the hormone?
cholecystokinin
Triacylglycerols constitute __% of the core lipids present in a chylomicron
95
they are too large to pass through capillary walls directly into the bloodstream
Chylomicrons
