In the context of cell signaling, to what does the term ligand refer?
A)a signaling molecule
B)the extracellular domain of a receptor protein
C)the proteins activated as part of a signal transduction pathway
D)a type of gated channel

Question

Quizplus · Accepted Answer

In the context of cell signaling, the term ligand refers to a signaling molecule that binds to a specific receptor on the surface of a cell or within the cell. This binding initiates a signaling cascade that ultimately leads to a cellular response.

In the Context of Cell Signaling, to What Does the Term