+A ligand is an ion or molecule that attaches to a central [Metal](/wiki/metal) atom or larger [Macromolecule](/wiki/macromolecule). This precise connection forms a [Complex](/wiki/complex), driving essential functions in chemistry and biology.
+## See also
+- [Receptor](/wiki/receptor)
+- [Binding](/wiki/binding)
+- [Catalysis](/wiki/catalysis)
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