01:119:115 Lecture Notes - Lecture 6: Fluid Mosaic Model, Membrane Transport, Signal Transduction

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:115
• Professor: Stern-Cardinale

Document Summary

Membranes and transport (sections 7. 1-7. 5: membrane components, cc membrane components, hypothesis and diagnose fluid mosaic model. Membrane transport: cc types of membrane transport. Intercellular joining: attachment to the cytoskeleton and extracellular matrix (ecm, a single protein performs multiple tasks, carbohydrates, polysaccharides attached to protein (glycoprotein) or lipid (glycolipid) Membrane transport: plasma membrane is selectively permeable, 2 basic types of transport, passive -- doesn"t use metabolic energy (atp, active does use metabolic energy (atp, a. Gas bottle in a box: fig 7. 10 (diffusion of one solute) dynamic equilibrium no net equilibrium movement (diffusion of two solutes) different substances diffuse independently, what can diffuse across a membrane, 2 factors, membrane fluidity, solute hydrophobicity. Lecture 6: gases: o2, co2, n2 (noncharged, nonpolar, small molecules, small nonpolar molecules (hydrophobic), including hydrocarbons, small polar uncharged molecules (hydrophilic), including. [solute] outside cell = [solute] inside cell: no net h2o movement, hypertonic solution. [solute] outside cell > [solute] inside cell: cell loses h2o, hypotonic solution.