What is the chemical nature of receptor?

A receptor is usually a protein or proteinaceous material. It is used for receiving and transducing the signals that are integrated into biological systems. The receptors action can be classified in three main ways:

  1. Relay of signal
  2. Amplification
  3. Integration
  • The receptor is a molecule, usually found on the surface of a cell, that receives chemical signals from outside the cell.
  • When such external substances bind to a receptor, they direct the cell to do something, such as divide, die, or allow specific substances to enter or exit the cell.
  • Receptors are proteins embedded in either the cell’s plasma membrane (cell surface receptors), in the cytoplasm, or in the cell’s nucleus (nuclear receptors), to which specific signalling molecules may attach.

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