What do all hormones have in common?

A) They are made from amino acids.
B) They are bound to transport molecules in the blood.
C) They bind to and interact with a receptor on or in the target cell.
D) They use the second messenger mechanism to control the target cell.
E) They are all lipid-soluble.

Transport Molecules

Molecules that move substances across cell membranes or within the body, including ions, nutrients, and gases.

Receptor Interaction

The binding and subsequent response triggered by the engagement of a receptor molecule with its specific ligand, crucial in various biological processes.

Second Messenger

Intracellular signaling molecules released by the cell in response to exposure to extracellular signaling molecules.