a:  facilitated diffusion ~
b:  taking an escalator
What:  
"Simple diffusion is like walking through an entryway of 
streamers; facilitated diffusion is like ; active transport is like entering through a subway gate using a ticket; endocytosis is like receiving shipping; and exocytosis  is like taking out the garbage."
Useful?
Writer:  Not Stated
LCC: 
Where:
Date:   Feb 25 2014  6:42 PM
# 5092 Critique Analogy
