CAS BI 315 Lecture Notes - Lecture 8: Bile Acid, Galactose, Colipase
9 Jan 2017
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Document Summary
Fructose enters epithelial cells by facilitated diffusion via gluts. Insulin o endocrine component distributed throughout the pancreas, mini spherical glands. Islets of langerhans : clusters of cells, cells produce insulin o needs to know when it"s time to produce that insulin. Glucose comes into a cell, insulin is released into the blood. Insulin acts on certain types of cells (skeletal muscle, adipose tissue), upregulating the number of gluts found in the membranes of those cells o adipocyte. In these cells are prepackaged vesicles containing gluts: like pre-formed aquaporins waiting to be merged with the membrane. In response to insulin binding to insulin receptor, gluts go to adipose cell membrane, and glucose can now go inside. Made in the small intestine, enteroendocrine cells. Proteins: protein digestion o in the stomach, by pepsin. Pepsin is produced by precursor pepsinogen o in the small intestine, by trypsin and chymotrypsin.
