Whether a signaling molecule operates locally or over long distances,it must bind to a specific receptor to elicit a cellular response.

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Quizplus · Accepted Answer

This statement is true. Signaling molecules, also known as ligands, interact with specific receptors on the surface or inside of target cells to trigger a signaling cascade that ultimately leads to a cellular response. Whether the ligand diffuses locally or travels through long distances in the bloodstream, it must bind to the appropriate receptor to activate its signaling pathway.

Whether a Signaling Molecule Operates Locally or Over Long Distances,it