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Where are extrajunctional receptors found

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Final answer:

Extrajunctional receptors are found in the cell membrane of cells. Each cell-surface receptor has an extracellular domain responsible for binding to ligand molecules outside the cell.

Step-by-step explanation:

Extrajunctional receptors are found in the cell membrane of cells.

Each cell-surface receptor has three main components: an external ligand-binding domain called the extracellular domain, a hydrophobic membrane-spanning region called a transmembrane domain, and an intracellular domain inside the cell. The size and extent of each of these domains vary widely, depending on the type of receptor.

The extracellular domain of a receptor is responsible for binding to ligand molecules outside the cell.

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