Plasma membrane: the security guard of the cell 

The plasma membrane or cell membrane is an intricate structure made of macromolecules that work together to protect the cell. Think of it as the security guard of the cell - letting important substances in, and letting others out.
In this video, we will cover the following:
00:00 INTRO
00:49 Plasma membrane structure
02:38 Plasma membrane function
03:29 Passive and active transport
07:36 Cell communication
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