A signaling molecule that binds a membrane protein is called a:
A)receptor.
B)transcription factor.
C)ligand.
D)protein cascade.

Question

Quizplus · Accepted Answer

A signaling molecule that binds to a membrane protein is called a ligand. The ligand binds to a specific receptor protein on the cell membrane, triggering a downstream signaling pathway to initiate a cellular response. Transcription factors are proteins that bind to DNA to regulate gene expression, while a protein cascade is a series of enzymes that are activated by a signaling pathway to amplify the signal and ultimately lead to a cellular response.

A Signaling Molecule That Binds a Membrane Protein Is Called