Mechanisms of communication between cells. Cells signal one another with secreted signaling molecules, or a signaling molecule on one cell combines with a receptor on another cell.

A cell with receptors that bind a hormone.

A molecule that binds to a specific site in a receptor or other protein.

A chain of molecules in the cell that relays a signal.

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1610 Ch. 6 Terms

1610 Biology: Ch. 6 Terms

Question	Answer
cell signaling	Mechanisms of communication between cells. Cells signal one another with secreted signaling molecules, or a signaling molecule on one cell combines with a receptor on another cell.
response
second messenger
target cell	A cell with receptors that bind a hormone.
ligand	A molecule that binds to a specific site in a receptor or other protein.
signaling cascade	A chain of molecules in the cell that relays a signal.
reception