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Move in and out of cell - Coggle Diagram

- - - - is
        
        movement of small, nonpolar molecules (O₂, CO₂)
        
        from high → low concentration
        
        Example: oxygen entering red blood cells
    - - is
        
        movement of large or polar molecules (e.g. glucose, ions)
        
        through
        
        transport proteins
        
        Channel proteins → create open pores (for ions)
        
        Carrier proteins → change shape to move molecules
      - example
        
        glucose entering cell via GLUT transporter
    - - is
        
        movement of water through selectively permeable membrane
        
        from high water potential → low water potential
      - may use
        
        aquaporin channels (special water proteins)
      - example
        
        water entering plant root cell
- - - - protein pumps