NSCI 2114 Study Guide - Quiz Guide: Benecol, Gastritis, Rubbing Alcohol
Document Summary
Digestion, absorption, and transport of lipids: primarily in the form of triglycerides, digestion: Begins in the mouth, mixes with saliva and lingual lipase which hydrolyzes the medium-chain fatty acids. Bolus of food travels through esophagus to stomach. Gastrin is released- stimulates release of gastric juices-hydrolyzes one fatty acid from the triglyceride. Which produces a free fatty acid and a diglyceride. Small intestine: bile flows in from the gallbladder. Pancreatic lipase changes the emulsified fat to monoglycerides, glycerol, and fatty acids. Large intestine: some fat and cholesterol, trapped in fiber, exit in feces: absorption: body takes the triglyceride (95%) and uses it where the body needs it. Long chain: 12 or more carbons- take longer to digest. Exit lymph and enter bloodstream through thoracic duct. Lipoprotein lipase hydrolyzes triglycerides in the chylomicrons as they travel to the liver via the bloodstream: transport: lipoproteins. Very-low-density lipoproteins (vldls): transport tgs and cholesterol from the liver to the cells.
