Movement of Substances In and Out of the Cell
Form Two Biology Notes
·       Substances
can pass across the cell membrane by the following mechanisms;
1.  
Passive
transport
a)   Osmosis
b)   Diffusion
c)   Facilitated
diffusion 
2.  
Active
transport 
3.  
Bulk
transport 
a)   Exocytosis
b)   Endocytosis
i.            
Phagocytosis 
ii.           
Pinocytosis 
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