When a ligand binds to a corresponding receptor, it activates or inhibits the receptor's associated biochemical pathway, which may also be highly specialised. Receptor proteins can be also classified …

Receptor, molecule, generally a protein, that receives signals for a cell. Small molecules, such as hormones outside the cell or second messengers inside the cell, bind tightly and specifically to their …

: a cellular entity (as a beta-receptor or alpha-receptor) that is a postulated intermediary between a chemical agent (as a neurohormone) acting on nervous tissue and the physiological or …

Aug 18, 2025 · Once a ligand binds to a receptor, it triggers signal transduction, converting the external signal into an internal cellular response. The binding typically induces a change in the receptor’s …

RECEPTOR definition: 1. a nerve ending that reacts to a change, such as heat or cold, in the body by sending a message…. Learn more.

Feb 27, 2018 · A receptor is a protein which binds to a specific molecule. The molecule it binds is known as the ligand. A ligand may be any molecule, from inorganic minerals to organism-created proteins, …

A receptor, for example the eye, receives and transforms stimuli into sensory nerve impulses. Receptors vary in complexity from the end of a sensory neurone to a sense cell and complex organs such as …