Are Some Cell Membrane Proteins Receptors

Last, but certainly not least, not all proteins in the plasma membrane function in transport operations. Some proteins function as receptors for special communicating substances in our body such as hormones and neurotransmitters. Typically, receptors will interact with only one specific molecule and ignore all other substances. In a way, then, these proteins can also be viewed as being involved in transport processes; however what's being transported isn't ions or molecules but information.

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