Cell Transportation

1. Passive Transport : 

   1. DIFFUSION - movement of molecules from an area of high concentration to an area of low concentration  

   2. OSMOSIS - diffusion of water across a membrane  

   3. FACILITATED DIFFUSION - carrier proteins/channels move molecules from an area of high concentration to an area of low concentration  

   4. FILTRATION - water + salutes are forced through a capillary wall 

2. Active Transport : ATP REQUIRED  

   1. SOLUTE PUMPING - a protein moves substances from low conc. --> high conc.  

   2. EXCOYTOSIS - movement of substance out of cell 

   3. ENDOCYTOSIS - movement of substance into cell 

What is the difference between a hypertonic and hypotonic solution? What would happen to a red blood cell if it were placed in these two solutions? 

1. Hypertonic - has a elevated/high level of solute  

   1. RBC would shrivel/crenate 

2. Hypotonic - has a low level of solute (diluted)  

   1. RBC would swell-->burst