Assessment on Cell Membranes and Diffusion
Draw a phospholipid molecule.  Label which parts are polar and which are nonpolar.

 
 
 
 

What does "selectively permeable" mean?
 
 
 
 
 

Draw a picture of a cell membrane.  Include phospholipids, proteins, and cholesterol.
 
 
 
 
 
 
 

Why are cell membranes described using a "fluid mosaic model?"
 
 
 
 
 
 
 
 

Explain using words and pictures what would happen to a cell in a hypertonic solution.
 
 
 
 
 
 
 

What is the difference between active transport and passive diffusion?
 
 
 


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