Cell Receptor Desensitization Mechanisms

Endocytosis

Down-regulation

Tachyphylaxis (correct)

Desensitization

The receptors may be recycled to the cell surface

A single ligand receptor complex can interact with many G proteins (correct)

Receptors become unresponsive to the ligand

Binding of the agonist results in molecular changes in the membrane-bound receptors

They are down-regulated

They become more sensitive to the ligand

They are sequestered from further agonist interaction (correct)

They initiate cell death

<p>They have the ability to amplify signal duration &amp; intensity</p> Signup and view all the answers

<p>The receptors may be still &amp; become unresponsive to the ligand.</p> Signup and view all the answers