A hormone's chemistry decides how it works. Lipid-soluble hormones mix with fat, so they slip inside the cell. Water-soluble ones must knock from outside. Switch between them and step through.
Steroid hormone
Hormone mechanismsinside vs outside the cell
📷 Reference image
A real labeled figure. Compare it with the interactive above.
How Hormones Act — OpenStax, CC BY 3.0 (via Wikimedia Commons)
