A receptor protein in the plasma membrane will not find just any chemical in the extracellular fluid but only certain ones, which is called specificity.
What is enzyme specificity?
In a chemical reaction, the word specificity makes reference to the fact that one enzyme only can bind to one substrate.
Specificity is a fundamental property of enzymes that allows controlling the rate of reactions depending on the substrate level.
In conclusion, a receptor protein in the plasma membrane will not find just any chemical in the extracellular fluid but only certain ones, which is called specificity.
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