ANFS 345 Lecture Notes - Lecture 3: Fluid Mosaic Model, Lipid Bilayer, Phospholipid

• School: University of Delaware
• Department: Animal and Food Sciences
• Course: ANFS 345
• Professor: Ryan Arsenault

Document Summary

The interface of extracellular and intracellular environment. Creates barrier to entry, but allows diffusion of simple molecules. Embedded and cannot be removed from membrane. Associated with membrane surface via weak bonds, can be. Permit simple diffusion of solutes to water transporter/carrier proteins. Bind specific molecules or ions to move across membrane. Catalyze chemical reactions in which covalent bonds are formed or broken. Binds specific molecule and then changes cell permeability for metabolism. Attaches membrane to internal cytoskeleton and joins adjacent. Polarized - apical side faces surface, basolateral side faces basement membrane and neighboring cells. Avascular - vessels run in underlying connective tissue. Cilia - use atp to move materials. All processes by which cells acquire, change, and remove molecules necessary to sustain life. Compound broken down to release energy amd create smaller building blocks. Accelerate a reaction and reduce energy required without being altered or consumed by the reaction. Amount of substrate converted to product per unit of time.