Concept
Version 6
Created by Boundless
Signaling Molecules
Steroid Hormones
Steroid hormones have similar chemical structures to their precursor, cholesterol. Because these molecules are small and hydrophobic, they can diffuse directly across the plasma membrane into the cell, where they interact with internal receptors.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Signaling Molecules and Cellular Receptors. October 16, 2013."
http://cnx.org/content/m44451/latest/Figure_09_01_08.jpg
OpenStax CNX
CC BY 3.0.