Chapter 8 Transport Across Membranes: Overcoming the Permeability Barrier OUTILNE Cells and Transport Processes Simple Diffusion: Unassisted Movement Down the Gradient Facilitated Diffusion: Protein-Mediated Movement Down the Gradient Active Transport: Protein-Mediated Movement Up the Gradient Examples of Active Transport The Energetics of Transport

Chapter 8 Transport Across Membranes: Overcoming the Permeability Barrier OUTILNE Cells and Transport Processes Simple Diffusion: Unassisted Movement Down the Gradient Facilitated Diffusion: Protein-Mediated Movement Down the Gradient Active Transport: Protein-Mediated Movement Up the Gradient Examples of Active Transport The Energetics of Transport

三種主要運輸方式的比較

運輸機制的最佳實例 : RBC

Chapter 8 Transport Across Membranes: Overcoming the Permeability Barrier OUTILNE Cells and Transport Processes Simple Diffusion: Unassisted Movement Down the Gradient Facilitated Diffusion: Protein-Mediated Movement Down the Gradient Active Transport: Protein-Mediated Movement Up the Gradient Examples of Active Transport The Energetics of Transport

Simple Diffusion

擴散永遠是以達到平衡為目的

決定擴散速率的三個主要因子

Chapter 8 Transport Across Membranes: Overcoming the Permeability Barrier Box 8A. Osmosis: The Diffusion of Water Across a Selectively Permeable Membrane

極性影響通透性

兩者最大不同之處

Chapter 8 Transport Across Membranes: Overcoming the Permeability Barrier OUTILNE Cells and Transport Processes Simple Diffusion: Unassisted Movement Down the Gradient Facilitated Diffusion: Protein-Mediated Movement Down the Gradient Active Transport: Protein-Mediated Movement Up the Gradient Examples of Active Transport The Energetics of Transport

名詞也適用於主動運輸

Facilitated Diffusion

Channel protein Ion channel Porins Aquaporins

Chapter 8 Transport Across Membranes: Overcoming the Permeability Barrier OUTILNE Cells and Transport Processes Simple Diffusion: Unassisted Movement Down the Gradient Facilitated Diffusion: Protein-Mediated Movement Down the Gradient Active Transport: Protein-Mediated Movement Up the Gradient Examples of Active Transport The Energetics of Transport

Chapter 8 Transport Across Membranes: Overcoming the Permeability Barrier Box 8B. Membrane Transport, Cystic Fibrosis, and the Prospects for Gene Therapy