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Cell Membrane Transport Part 1: Passive Diffusion
Introduction: The Cell Membrane ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Structure of the Cell Membrane
Diffusion ,[object Object]
Diffusion
Solutions ,[object Object],[object Object],[object Object]
Types of Solutions ,[object Object],[object Object],[object Object]
Passive Diffusion ,[object Object],[object Object],[object Object]
Diffusion through a membrane SOLUTE moves DOWN concentration gradient  (HIGH concentration to LOW concentration) Cell membrane

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Passive Diffusion

Notas do Editor

  1. FLUID - because individual phospholipids and proteins can move side-to-side within the layer, like it’s a liquid. MOSAIC - because of the pattern produced by the scattered protein molecules when the membrane is viewed from above .
  2. 1. Transport proteins - transport of materials across membrane (some materials are too large or will not freely pass through the phospholipid bilayer) 2. Receptor proteins - communication between cells (receive chemical signals)