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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