Final answer:
A covalent bond is a type of chemical bond that occurs when two nonmetal atoms share a pair of electrons. It is not found between a ligand and its receptor. Ligands and receptors often interact through other types of bonds.
Step-by-step explanation:
A covalent bond is a type of chemical bond that occurs when two atoms share a pair of electrons. It is found between nonmetal atoms and is one of the strongest types of chemical bonds. Covalent bonds are different from other types of bonds like ionic bonds or hydrogen bonds.
In an ionic bond, electrons are transferred from one atom to another, resulting in the formation of positively and negatively charged ions which are attracted to each other. In a hydrogen bond, a hydrogen atom that is bonded to an electronegative atom is attracted to another electronegative atom.
Therefore, the statement that a covalent bond is found between a ligand and its receptor is false. Ligands and receptors often interact through other types of bonds like ionic bonds, hydrogen bonds, or even hydrophobic interactions.