A Tunnel Maybe?

a: Cell receptor ~
b: tube

What: "A receptor is like a tube that protrudes outside and inside the cell membrane or membrane of the nucleus. A cell may have around 500 receptors or thousands" A trans-membrane protein it is.

Useful?
Writer: conradofontanilla
LCC:
Where:
Date: May 14 2013 1:50 PM


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