15.7 Transport across epithelia: the intestinal epithelium is highly polarized

03/26/2002


Click here to start


Table of Contents

PPT Slide

15.7 Transport across epithelia: the intestinal epithelium is highly polarized

15.7 Microvilli

15.7 Transepithelial movement of glucose and amino acids requires multiple transport proteins

15.7 Parietal cells acidify the stomach contents while maintaining a neutral cytosolic pH

15.7 Tight junctions seal off body cavities and restrict diffusion of membrane components

15.7 A proposed model for formation of tight junctions

15.8 Water channels are necessary for bulk flow of water across cell membranes

15.8 The structure of aquaporin, a water channel protein in the erythocyte plasma membrane

15.7 Transepithelial movement of glucose and amino acids requires multiple transport proteins

PPT Slide

18.1 The actin cytoskeleton

18.1 ATP holds together the two lobes of the actin monomer

18.1 G-actin assembles into long, helical F-actin polymers

18.1 F-actin has structural and functional polarity

18.1 The actin cytoskeleton is organized into bundles and networks of filaments

18.1 Actin cross-linking proteins bridge actin filaments to form bundles and networks

18.1 Example actin cross-linking proteins

18.1 Cross-linkage of actin filament networks to the plasma membrane in various cells

Duchene muscular dystrophy

Weakness in rising

Muscle destruction in Duchenne

Missing dystrophin

Author: Brian Bergstrom

Email: Brianb@muskingum.edu

Home Page: http://muskingum.edu/~brianb/Cellphys/Cellphys.html